[Jamesriot]

Since I  still use the standard exhaust and the sound is not loud enough.
Which exhaust have a "Thump" sound that just as great as the old RE model that suitable for 500 EFI, please recommend.

Hope to hear from you guys, Thanks 

[ace.cafe]

Getting it to sound like the old Iron Barrel models isn't going to happen.
The cam timing is different on these new models, and that sound is partly created by the cam timing.
But that doesn't mean it couldn't be a thump that is pleasing in its own way.

[Jamesriot]

So, is there any right exhaust/muffler to make it sound louder than the standard silencer?

[jartist]

Pretty much any aftermarket muffler will be louder than the stock torpedo. Use the search feature and unclick the search all box and only look under uce board and search muffler or silencer. There's alot that's been discussed in archive. I have the efi silencer from nfield gear and I'm very happy with the sound and volume.  It purrs when you're thumping along and roars when you open it up!

[Jamesriot]

Pretty much any aftermarket muffler will be louder than the stock torpedo. Use the search feature and unclick the search all box and only look under uce board and search muffler or silencer. There's alot that's been discussed in archive. I have the efi silencer from nfield gear and I'm very happy with the sound and volume.  It purrs when you're thumping along and roars when you open it up!

Thanks for your information, I tried to dig up some old posts that talk about it.

[dick_deck]

EFI Silencer +1

Also, if you really want to get loud, I think you can remove the baffling from the silencer. You will need to remap your EFI to prevent engine wear if you do though, which is a whole new adventure.

[barenekd]

Generally the EFI will remap itself to the average aftermarket muffler.
My riding buddy drilled out his stock torpedo. It made a little more noise, but didn't run any better. He then put on a Dunstall muffler and made even more noise, but definitely ran better!
Bare

[wildbill]

C5 with the EFI muffler. Pretty load and pretty good. You'll be happy with it.
purchased from Hitchcocks UK

[csbdr]

I have the upswept and it's da bomb! You have to sacrifice a bag on that side though. Initially I thought the one bag looked dorky but since have decided it looks kind cool.

[newtothescene]

I love my bullet. I just wish it was a little louder and had a little moe ooomph! I find the stock exhaust turns colour really fast as well. I currently have the header pipe wrapped in exhaust tape all the way to the heat shield. I was wondering about just replacing the entire thing with a straight pipe, no baffle, no silencer. Gas mileage isnt a huge concern, and a friend of mine with an injected BMW says the engine should compensate without the need of remapping. Any ideas?

[gremlin]

a straight pipe, no baffle, no silencer. Gas mileage isnt a huge concern, and a friend of mine with an injected BMW says the engine should compensate without the need of remapping.

Let me know how that turns out for ya .....   

[barenekd]

The EFI will probably compensate for the change, however you'll soon be compensating the cops for the racket! You can buy a Dunstall replica for $62.00 that will give you more than enough thump, and cost a lot less than the ticket.
Bare