We've assembled our most popular upgrades for the ECU Bullet into 1 kit to save you money. Everyone who is looking to upgrade their fuel injected Bullet, invariably ends up buying these three things:
Pre-mapped Power Commander
Aftermarket free-flowing Megaphone Silencer
K&N Air Filter
On top of those things, we've also included the O2 sensor block-off plug so that you can have a clean and professional installation.
Expects gains in power (approximately 20% over stock), overall performance and runnability with this easy to install performance upgrade solution.
Fits Fuel Injected Bullet models
Includes:
Z91854 Power Commander V-Mapped for 500cc Bullet w/K&N and aftermarket silencer
Megaphone Silencer
Z90061 K&N EFI Bullet
Z91827 O2 Sensor Blanking Plug
http://www.nfieldgear.com/stage-1-efi-bullet-performance-kit/