[jimku]

I am not going to spend $650.00 for a pair of S&S silencers.  Out of the question.
I have looked at AEW, Red Rooster and Gursewak silencers.  None of them include a heat shield to cover the ugly joint between the pipe and the silencer.
Today I found these from FLYBHP, and am probably going to get a pair.
They have nice chrome extensions that cover that joint, and sound pretty darned good to me (from towards the end of the 1st video).
https://www.flybhp.com/powerage-chrome-slipon-twin-exhaust-for-royal-enfield-interceptor-650-continental-gt-650.html
https://youtu.be/tQk8lFIwxkQ
https://www.youtube.com/watch?v=dfrAefvGUO0

[darmahman]

Interesting.. I have bought dozens of aftermarket exhaust "silencers" over the years but never seen chrome plated Stainless Steel ones before. That would seem to add an un-needed expense. Either most manufactures chrome regular steel mufflers or brush or polish the SS but both??

I am not going to spend $650.00 for a pair of S&S silencers.  Out of the question.
I have looked at AEW, Red Rooster and Gursewak silencers.  None of them include a heat shield to cover the ugly joint between the pipe and the silencer.
Today I found these from FLYBHP, and am probably going to get a pair.
They have nice chrome extensions that cover that joint, and sound pretty darned good to me (from towards the end of the 1st video).
https://www.flybhp.com/powerage-chrome-slipon-twin-exhaust-for-royal-enfield-interceptor-650-continental-gt-650.html
https://youtu.be/tQk8lFIwxkQ
https://www.youtube.com/watch?v=dfrAefvGUO0

[darmahman]

The sound of those is similar to the S&S. Maybe a little louder.

[gizzo]

They're very affordable. Look and sound nice in the vid, too. Good luck.

It looks like they stole the my design for rubber mounted muffler bracket (jks, anyone could come up with that  )
https://forum.classicmotorworks.com/index.php?topic=23044.msg305595#msg305595

[raygun58]

I have the AEW TE 102 stainless steel which have a cover welded on to hide the slip joint and clamp.  They look and sound nice.  I paid $450 on ebay.  Now they are down to about $410.

[Marcsen]

You have to thank god for not living in germany. we need to have special and expensive aprovals for most parts.  So a TÜV aproved Slip on costs us around 700€ and a full kit with headers starts at around 1100€ up to 1500€

[Marcsen]

The one iam going to buy in April

https://www.massmoto.it/prodotto/impianto-completo-2in2-hot-rod-royal-enfield-interceptor-650/

[jimku]

The one iam going to buy in April

https://www.massmoto.it/prodotto/impianto-completo-2in2-hot-rod-royal-enfield-interceptor-650/

I hope you plan on riding with ear plugs and avoiding po-lice. 

[Marcsen]

Those have a silencer fited inside same as regular Slip ons and are EU homologated

[jimku]

Couldn't tell from the link because it isn't in English.  Just a bunch of gibberish.

[gizzo]

Couldn't tell from the link because it isn't in English.  Just a bunch of gibberish.

Wow. That's a very rude thing to say about someone else's language.  Can't google translate it into hillbilly?

[jimku]

Wow. That's a very rude thing to say about someone else's language.  Can't google translate it into hillbilly?

La particolare forma a tubo del nostro impianto di scarico completo "2in2 Hot Rod" si sviluppa dalle teste e contiene al suo interno un sistema di insonorizzazione composto da canne traforate avvolte da materiale fonoassorbente, esso è realizzato artigianalmente in acciaio inossidabile ponendo particolare attenzione alla qualità dei materiali e ai dettagli nelle saldature, ciò garantisce affidabilità e durata nel tempo.

Progettato esclusivamente per Royal Enfield Interceptor 650 ; dotato di due dB-killer estraibili, compensatore, alloggi per le sonde lambda, occorrente per il facile montaggio e certificato di omologazione per la circolazione stradale.

Per l’estetica effettuiamo due diversi trattamenti esterni; la lucidatura e la satinatura.

Il nostro impianto garantisce un incremento di potenza e coppia del 5% rispetto ai parametri originali della moto, miglioramento in accelerazione, riduzione di peso e dei consumi di carburante, il tutto senza apportare modifiche alla centralina originale.

La moto avrà un sound più cupo e accattivante nel rispetto del codice della strada.

L'impianto verrà realizzato dopo la conferma d’acquisto, i tempi di produzione variano da 3 a 10 giorni lavorativi. Al momento della spedizione (che di solito avviene in 2-3 giorni lavorativi per  l’Italia e 5-6 per il resto del mondo) invieremo una email con il codice per il tracciamento e il corriere che effettuerà la consegna.

I metodi di pagamento accettati sono:  bonifico bancario anticipato, ricarica PostePay e PayPal.

La garanzia è di 2 anni.

Does this look like hillbilly or gibberish?  Don't know about you, but when something is totally incomprehensable, impossible to understand, I call it gibberish.  I actually consider it rude to post it on this site.

[LongMan]

You have to thank god for not living in germany. we need to have special and expensive aprovals for most parts.  So a TÜV aproved Slip on costs us around 700€ and a full kit with headers starts at around 1100€ up to 1500€

Yup, and driving with a not homologated exhaust might result in a hefty fine if you get caught with it, additionally you have to get the bike re-approved after reverting it to legal state. Additionally you might loose your insurance when driving with not homologated safety-related parts. If you are not so lucky to get away with the fine, they will shut down the bike on the spot, means you are going nowhere from there with that exhaust. Hope you got your cell phone with you to call a buddy with a trailer...

After thinking back and forth I bit the bullet and ordered one of that overpriced homologated full exhaust systems (and yes, that web site is in english...):
http://www.dnt-racing.com/product/interceptor-650-continental-gt/

Due to it's short length and slim diameter it changes the appearance of the bike significantly. Mounted to a stock Interceptor it looks somewhat odd. To make it look good it needs some more changes, in particular a shorter tail of the bike (remove that ugly mud flap, mount smaller and narrower indicators), and a single rider seat (the Corbin Gunfighter would be a great choice for my taste). Maybe even a lower handle bar.
On the plus side that exhaust saves you more than 12kg of weight, and combined with that other changes it could look great. We'll see how that turns out...

[jimku]

OK, finally got the mess translated to rude Hillbilly:
A 5% increase in power and torque for an Interceptor is a whopping 2.35hp and 2.5lbs torque.

The particular tube shape of our complete "2in2 Hot Rod" exhaust system develops from the heads and contains inside a soundproofing system composed of perforated reeds wrapped in sound-absorbing material, it is handcrafted in stainless steel with particular attention to quality materials and details in the welds, this guarantees reliability and durability.

Designed exclusively for Royal Enfield Interceptor 650; equipped with two removable dB-killer, compensator, housing for the lambda probes, necessary for easy assembly and certificate of approval for road traffic.

For aesthetics, we carry out two different external treatments; polishing and satin finishing.

Our system guarantees a 5% increase in power and torque compared to the original parameters of the bike, improvement in acceleration, reduction in weight and fuel consumption, all without making changes to the original control unit.

The bike will have a darker and more captivating sound in compliance with the highway code.

The plant will be built after purchase confirmation, production times vary from 3 to 10 working days. At the time of shipment (which usually takes 2-3 working days for Italy and 5-6 for the rest of the world) we will send an email with the tracking code and the courier who will deliver.

The accepted payment methods are: advance bank transfer, PostePay and PayPal top-up.

The guarantee is 2 years.

[olhogrider]

Wow. That's a very rude thing to say about someone else's language.  Can't google translate it into hillbilly?

HAHA! That was hilarious!

[LongMan]

OK, finally got the mess translated:
A 5% increase in power and torque for an Interceptor is a whopping 2.35hp and 2.5lbs torque.

Yup, that's the numbers you can expect from a road legal exhaust in Europe. The laws allow a certain deviation from the nominal 47HP power rating. 5% is perfectly inside that margin. So the exhaust is legal, but on the other hand they give the customer an argument to convince himself to spend that amount of money.

Of course you do not really notice that 2-3HP increase when driving, but that's not the point when justifying your gear acquiring syndrome As they said in Spinal Tap: 11 is one more!

[jimku]

Yup, that's the numbers you can expect from a road legal exhaust in Europe. The laws allow a certain deviation from the nominal 47HP power rating. 5% is perfectly inside that margin. So the exhaust is legal, but on the other hand they give the customer an argument to convince himself to spend that amount of money.

Of course you do not really notice that 2-3HP increase when driving, but that's not the point when justifying your gear acquiring syndrome As they said in Spinal Tap: 11 is one more!

I have to admit they are nice looking pipes and intriguing.  I wonder if they discolor from heat.  No mention of that.  And what they say about "reeds wrapped in sound absorbing material" is also pretty vague and I would want much more detail about that.

[olhogrider]

The "reeds" are probably the translation for a perforated tube, which is usually wrapped in fiberglass. That's how most aftermarket pipes work. Just like Cherry Bomb glasspacks of old.

[LongMan]

I wonder if they discolor from heat.  No mention of that.

Probably they do. The full exhaust I bought definitely does, already saw pictures of units that were actually used on an Interceptor. They turn to that slight yellow-blueish color that is typical for single wall exhausts. That's the price for saving over 12kg weight. The RE original exhaust is double wall, therefore it keeps the nice chrome color without discoloring.

[LongMan]

The full exhaust I bought definitely does, already saw pictures of units that were actually used on an Interceptor

Here's a website that shows the discoloration I mentioned. Sorry, german only, but I dare to post it anyway because it is only about the images.
Btw. I did not buy from that dealership, my RE dealer made a far better price.
https://www.omega-kraftrad.de/artikel.php?id=45249

[jimku]

I started this post because I was intereted in these silencers.
https://www.flybhp.com/powerage-chrome-slipon-twin-exhaust-for-royal-enfield-interceptor-650-continental-gt-650.html
https://youtu.be/tQk8lFIwxkQ
https://www.youtube.com/watch?v=dfrAefvGUO0

I have finally gotten them to agree to send me a Paypal invoice so I can actually buy them.
The silencers are $208.73
Shipping is $113.27
Total $322.00

A bit pricey but I REALLY like them and they are still half the cost of S&S silencers so I am going for it ... if I ever actually recieve the invoice.  They say they have sent it twice but I still haven't recieved it.  They have raised the issue with Paypal and right now I am in limbo.

[darmahman]

Nice choice. They look exactly like my S&S after I had the brushed finish polished. Same grade stainless.
Do you know if they have packing in them or perforated stainless steel guts w/o the packing like the S&S?
When you get them check to see if a magnet will hold. If not, that is good.

[jimku]

Nice choice. They look exactly like my S&S after I had the brushed finish polished. Same grade stainless.
Do you know if they have packing in them or perforated stainless steel guts w/o the packing like the S&S?
When you get them check to see if a magnet will hold. If not, that is good.

No, I don't know about the packing.  All I know is that I love how they sound in the videos.  And if Paypal can't resolve the vendor's problem with sending me an invoice that I actually receive I won't be able to buy them.  Since they do not have removable end caps so they can be re-packed when the packing burns out, it wouldn't surprise me if they have no packing.

[jimku]

FINALY got the Paypal invoice and got them paid!  So THEY ARE ON THE WAY! 
VROOM!

[BRG-BIRD]

Sweet! Some nice photos and write up would be great

[jimku]

Sweet! Some nice photos and write up would be great

The only photos and write-up I have are here:
https://www.flybhp.com/powerage-chrome-slipon-twin-exhaust-for-royal-enfield-interceptor-650-continental-gt-650.html
http://www.powerageperformance.com/

[jimku]

I just now found another sound video
https://www.youtube.com/watch?v=JiDHkCAPRPM

[jimku]

Still working on getting an answer about whether or not there is packing in the silencers.  The vendor is checking into it with the manufacturer.

[jimku]

Just heard back from the manufacturer.  They said they have a high grade synthetic packing that will not need replcement.  I asked 'What kind of synthetic material ... steel wool?".  They replied "No, a high grade glass fiber".  And they sent the PDF brochure thingy attached below.

Fine with me, I REALLY like the sound of them and they certainly won't get any quieter with age, and if they do get louder that's fine with me.

[jimku]

Got the silencers and they are gorgeous.  A little heavier than expected, but will look and sound great.

[swamp2]

These look pretty cool... Price doesn't seem bad either.

https://westerncyclesupply.com/performance-exhaust/

[jimku]

These look pretty cool... Price doesn't seem bad either.

https://westerncyclesupply.com/performance-exhaust/

Those do look pretty cool.

[mwmosser]

Re-opening this thread: anyone get these from Western yet? Right now they're listed as "pre-order" but this thread dates back to January. Another COVID casualty?

[Woozer]

FINALY got the Paypal invoice and got them paid!  So THEY ARE ON THE WAY! 
VROOM!

Very interested to hear if they are really and truly on the way, or if they've just processed your order. I have an AEW exhaust system that''s been sitting in a post office in India for nearly two months because they put it in the mail to me the day before the country locked down completely. I have a relative whose parents live in India, and even they have no idea when external shipments will resume. If yours are on the way, I have hope.

[mwmosser]

Exactly why I re-opened the thread. Jimku's message is from early January...

[olhogrider]

I did the same with the 500. Bought a muffler from India and two days later they locked down. No reason WCS shouldn't send them if they have them in stock.

[gizzo]

Maybe they're all trapped at home, or died

[Spicyred]

Maybe they're all trapped at home, or died

Maybe........another four months have passed. Anyway, fancy meeting you in here!

[gizzo]

Maybe........another four months have passed. Anyway, fancy meeting you in here!

Hello @Spicyred! We all orta have a multi state Enfield meetup when this silliness is over.

[Toontje]

deleted

[Starpeve]

I’m no elitist, so I went for looks then moved forward from there. I have a definitive look that I seek for my bikes, and I ended up buying cheapies Emgo mufflers, which I then modified with additional baffling, they’re a reverse megaphone shorty style, look great, sound pretty good. And cost me $150 AU.
 So if I scratch em, I’ll just buy more. And about 11 kg lighter than OEM.

[NVDucati]

I’m no elitist, so I went for looks then moved forward from there. I have a definitive look that I seek for my bikes, and I ended up buying cheapies Emgo mufflers, which I then modified with additional baffling, they’re a reverse megaphone shorty style, look great, sound pretty good. And cost me $150 AU.
 So if I scratch em, I’ll just buy more. And about 11 kg lighter than OEM.

That really IS a great looking bike.

[mwmosser]

I’m no elitist, so I went for looks then moved forward from there. I have a definitive look that I seek for my bikes, and I ended up buying cheapies Emgo mufflers, which I then modified with additional baffling, they’re a reverse megaphone shorty style, look great, sound pretty good. And cost me $150 AU.
 So if I scratch em, I’ll just buy more. And about 11 kg lighter than OEM.

Quite nice indeed. How did you get the additional baffling inside? Did you pack from the front before installing? And how did you secure it in the pipe?

[Bagonne]

I absolutely love my Dustland Road Riders.  They fit the bike's look and sound deep and throaty.  removable baffles for super loud if that's your thing.  Nice seamless look and well designed lines. 

[mwmosser]

I absolutely love my Dustland Road Riders.  They fit the bike's look and sound deep and throaty.  removable baffles for super loud if that's your thing.  Nice seamless look and well designed lines.

I notice you went with the Innovative bar end caps as well - nice choice of red to complement the Baker Express color scheme

[Bagonne]

I notice you went with the Innovative bar end caps as well - nice choice of red to complement the Baker Express color scheme

Yes, straight from your post. Works really well, thanks.

I'm a sucker for red bling

[mwmosser]

Yes, straight from your post. Works really well, thanks.

I'm a sucker for red bling

And cheap too! I think they're identical to the RE-branded ones, except 1/3 (1/4?) the price and no "Royal Enfield" lettering. But you can get them in all sorts of colors besides black and silver. Glad you like them. I am happy with mine as well.

[anglojaxon]

My bike came with the S&S pipe. Yes, they are expensive. I likely should have also got the original exhausts since these replaced it. Had I known there where options I likely would have went with AEW. Some company in Thailand makes an entire exhaust system for the price of the S&S ones and headers are nice looking.

[Dacvulcan]

I had a pair of the PowerAge stainless steel mufflers and they came apart at the seam under the joint shield. The right muffler blew out all of the ceramic wool through the faulty weld and the left muffler was just starting to. I replaced them with the AEW TE-102 mufflers that are much better quality, better looking, and easier to install. The PowerAge mufflers did sound great while they lasted. Maybe the chrome version won't have the problem I had.

[gizzo]

I’m no elitist, so I went for looks then moved forward from there. I have a definitive look that I seek for my bikes, and I ended up buying cheapies Emgo mufflers, which I then modified with additional baffling, they’re a reverse megaphone shorty style, look great, sound pretty good. And cost me $150 AU.
 So if I scratch em, I’ll just buy more. And about 11 kg lighter than OEM.

I think I saw you heading over the railway crossing going towards West Lakes last week. Sounded good, looked nice. The red Sled looks nice too. Got the trans fixed?

[Starpeve]

That really IS a great looking bike.

Thanks mate , I’m glad you like it . I know I do. Lots.

[Starpeve]

Quite nice indeed. How did you get the additional baffling inside? Did you pack from the front before installing? And how did you secure it in the pipe?

I don’t know what they’re called, but I think they’re a trail bike baffle. About 1 1/2 inch diameter. They’re not fixed inside the Emgo baffle, but wrapped in fibreglass baffle material to prevent rattling. I slid them up inside from the header end and they’re held tight by the glass. Here’s a picture of the component parts.
If you look closely at the bracketing you’ll see how I’ve used the original brackets reversed and fitted to the captive nut slide On the muffler with stainless button heads. Looks almost OEM and I’m really proud of them. A lot of buggerising around but worth it.

[Starpeve]

I think I saw you heading over the railway crossing going towards West Lakes last week. Sounded good, looked nice. The red Sled looks nice too. Got the trans fixed?

Yeah , 1700 smackers damn it. I reckon that was me👍. Feel free to pull me over for a yak if you’re able😁

[NVDucati]

I don’t know what they’re called, but I think they’re a trail bike baffle. About 1 1/2 inch diameter. They’re not fixed inside the Emgo baffle, but wrapped in fibreglass baffle material to prevent rattling. I slid them up inside from the header end and they’re held tight by the glass. Here’s a picture of the component parts.
If you look closely at the bracketing you’ll see how I’ve used the original brackets reversed and fitted to the captive nut slide On the muffler with stainless button heads. Looks almost OEM and I’m really proud of them. A lot of buggerising around but worth it.

Good work there, Starpeve. There something special about the motorcycle spirit and the satisfaction of a home-brew solution.
For folks wanting to repack their silencers or adding more wool, it is handy to wind some thread or even dental floss around the packing material to keep it from bunching up as you slide it into the silencer. The thread disappears after a short while.

[mwmosser]

I don’t know what they’re called, but I think they’re a trail bike baffle. About 1 1/2 inch diameter. They’re not fixed inside the Emgo baffle, but wrapped in fibreglass baffle material to prevent rattling. I slid them up inside from the header end and they’re held tight by the glass. Here’s a picture of the component parts.
If you look closely at the bracketing you’ll see how I’ve used the original brackets reversed and fitted to the captive nut slide On the muffler with stainless button heads. Looks almost OEM and I’m really proud of them. A lot of buggerising around but worth it.

Well done indeed. I don't know if I'd have the patience for the additional buggering but I appreciate that you do! Nice to see the photo along with the description of what you did. Makes it much easier to visualize.

[Starpeve]

Well done indeed. I don't know if I'd have the patience for the additional buggering but I appreciate that you do! Nice to see the photo along with the description of what you did. Makes it much easier to visualize.

My pleasure mate👍

[MikeAlpha]

Hard to find something legal for Germany, and get a comparison, as probably everyone on Youtube uses different sound equipment. However, the Zard exhaust comes through quite nicely. Just raw exhaust sound :

https://www.youtube.com/watch?v=YzeGPYJQf-o

great channel to compare Interceptor sound with other bikes

[Starpeve]

They're very affordable. Look and sound nice in the vid, too. Good luck.

It looks like they stole the my design for rubber mounted muffler bracket (jks, anyone could come up with that  )
https://forum.classicmotorworks.com/index.php?topic=23044.msg305595#msg305595
Are you cutting my lunch??

[Starpeve]

sorry, drunken moment??!!

[Bagonne]

Oh my God, I removed the baffles and it was obnoxiously loud. Lost some grunt on the low revs, too.

I think I'll drill out these holes bigger and put them back fir a slight volume/bass note increase.  Might have to add the booster plug but I'm holding out. 

[NVDucati]

Oh my God, I removed the baffles and it was obnoxiously loud. Lost some grunt on the low revs, too.

I think I'll drill out these holes bigger and put them back fir a slight volume/bass note increase.  Might have to add the booster plug but I'm holding out.

It might go with out saying but you can just alter them by just doing one of them first so that you can hear the progress as you go.

[Bagonne]

It might go with out saying but you can just alter them by just doing one of them first so that you can hear the progress as you go.

I was wondering what would happen with different back pressures per side.  I can also drill out one or two holes each at a time...

[NVDucati]

I was wondering what would happen with different back pressures per side.  I can also drill out one or two holes each at a time...

Yeah, eventually you want them to be the same but if you "sneak" up to what you want on just one side you can hear the difference by just moving your head from side to side while standing behind it. When you are "designing" your sound think about how a trumpet or trombone works.

[Bagonne]

Yeah, eventually you want them to be the same but if you "sneak" up to what you want on just one side you can hear the difference by just moving your head from side to side while standing behind it. When you are "designing" your sound think about how a trumpet or trombone works.

Ha, love it  thanks

[Haggisman]

Apparently there is a restricter in the header pipe just before the catalytic converter. I doubt that anything you do past that would make any significant difference to the exhaust back pressure.

[Starpeve]

Apparently there is a restricter in the header pipe just before the catalytic converter. I doubt that anything you do past that would make any significant difference to the exhaust back pressure.

I was speculating on whether that also prevents that nice bass note we’re all chasing, too?

[Haggisman]

The restriction in the standard header pipes would explain the power boost achieved simply by its replacement.

[Starpeve]

The restriction in the standard header pipes would explain the power boost achieved simply by its replacement.

And perhaps the tone?

[Toontje]

https://www.youtube.com/watch?v=fzKyBSUQfuw

[MikeAlpha]

Ouch. Using a flashlight to check inside the exhaust is standard procedure by the German police. So that can cost you a lot here. New silencers only a part of the costs...

Mike

[Bagonne]

The restriction in the standard header pipes would explain the power boost achieved simply by its replacement.

I wonder why I felt apparent loss of torque in low RPMs with the baffles out?

[NVDucati]

I was speculating on whether that also prevents that nice bass note we’re all chasing, too?
and And perhaps the tone?

While it is a little abstract, we need to recognize that traveling though our exhaust pipes there are two separate things. Exhaust gases and sound waves. 

The foundation of sound tone (any sound) is expansion of the sound waves. It is most easily visualized by looking at ripples in a container of water. Drop something into the container and watch the ripples. Obviously, the ripples get smaller as they move away from the source. At the beginning (in cross view) they are taller and spaced further apart. Eventually, they disappear. Sound waves and water waves behave very similarly to each other. Another way to visualize it is to compare a bass saxophone to a tenor sax to a whistle or a base drum to a snare drum. Simple, at this point.  Exhaust gases, a byproduct of combustion, cause sound waves but are not the sound waves. Still simple, right?

Then comes the complexity generated by the conflict of power performance vs peace and quiet.
The 1/4 mile ET, dyno crowd, understandably, generates most of our data. That's fine because that is where it matters most. Win / lose measured in fractions of a second. Also let's not forget that a lot of our most beloved exhaust theories were born prior to fuel injection.

But this is all about that base. (remember that song ) I'm going to pick up the pace here.
That calls for a period of time where the sound waves are left in the deeper, more widely spaced condition. Our baffles and fiber packing serve to mechanically chop up the sound waves into smaller more shallow profiles, including having the sound waves bounce back into themselves. It works. Peace and quiet.

We need to be thinking in terms of resonance. [noun: the quality in a sound of being deep, full, and reverberating:] So really we are hunting for more of a resonator than a muffler. At this point you can start your search for what you want. I'll refer you to this quick article: http://knowhow.napaonline.com/exhaust-resonator-explained/ 
When you look at this article you are bound to notice a image with a shape that we are familiar.

 

[Haggisman]

I wonder why I felt apparent loss of torque in low RPMs with the baffles out?

Torque and power  not the same thing

[Bagonne]

Torque and power  not the same thing

ok and yes.  This is why I say "apparent".  What would you call it, what I seem to be noticing?

[Toontje]

http://knowhow.napaonline.com/exhaust-resonator-explained/ 

From this article: "Today’s modern combustion engines also use sound waves to help evacuate the combustion chamber and move the exhaust down through the pipes and out of the muffler, and this action relies heavily on the resonator. By tuning the pulses of exhaust gas to work together, it creates stronger waves of exhaust that vacuum the gas out more quickly."
I know that in 2-stroke engines we use(d) the wave reflections to "pull out" the exhaust gasses so more fresh gasses can get into the cylinder for a more powerful combustion. But i always thought that the time between exhaust and intake for a 4-stroke engine was too long for this system of pulling out gasses by using wave reflection to be effectively used, that the reflection walls of the exhaust would be too far away from the exhaust valves and the physical exhaust system (collector, reflector, resonator and muffler) would get too big. I always thought that the use of reflection in 4-stroke engines was not used and that the exhaust system was only to get the gasses through the catalyser, limit the sound and comply to environmental regulations.
I guess i was wrong?

[tooseevee]

I wonder why I felt apparent loss of torque in low RPMs with the baffles out?

     Same reason shovelheads run terrible, but sound great at idle, with the 40" straight pipes the catalogs sell. Chop 'em off to 30" and they're a little better, but not much. They need an adjustable baffle at the tip (like a lollypop) and then you can get them a bit better in the midrange.

[Jako]

https://youtu.be/-uMtNegFhoA

[Bagonne]

https://youtu.be/-uMtNegFhoA

I like those new header pipes for sure.  wish there was more info on them

[NVDucati]

https://youtu.be/-uMtNegFhoA

Great video! AND finally an Australian accent I can understand.

[Haggisman]

Great video! AND finally an Australian accent I can understand.

Those accents are about  as Australian as New York city.  Those people may have lived here a while that's all!

[jimku]

For me it's all about looks and sound on my particular bike.  Performance differences one set of silencers to another is minimal at best.  I love my PowerAge silencers.  They look great and sound great ... not too quiet, not too loud.

[NVDucati]

Those accents are about  as Australian as New York city.  Those people may have lived here a while that's all!

Haggisman, Haggisman, Haggisman,
Just "Yank"ing your chain, mate.

[Starpeve]

Haggisman, Haggisman, Haggisman,
Just "Yank"ing your chain, mate.

That’s a relief! I thought you were serious for a moment there!

[Starpeve]

Great video! AND finally an Australian accent I can understand.

I REALLY like those headers. The closer lines from the heads down looks lovely. I realise they’re not street legal but in Australia if they’re not obviously so then I think you’d get away with them. Good price too.
Any thoughts on the plus/ negatives on an untuned bike?

[Roshiba777]

Have shorten the db killers length by 3 inches on my AEW TE 102 exhaust if I shorten this length further by 1 inch does it has any effect on the exhaust note

[Bagonne]

Btw, the Revelry folks in Australia tell me that with their headers,  s&s cans and dna filter their interceptor does 50hp at the wheel.