Big Gun REV Box – Suzuki LTZ 400 / Kawasaki KFX 400 2003-2004, Model 40-R02, Made In USA

Wake up your ATV with this Big Gun REV box.

Built for 2003-2004 Suzuki LTZ 400 and Kawasaki KFX 400 models, part number 40-R02.

Designed to raise the rev limit and sharpen throttle response.

Made in the USA with a mixed finish, plug-and-play install.

6-month warranty included.

If you’re chasing more snap out of corners or just want your quad to breathe harder upstairs, this is the mod.

Simple, effective, Big Gun reliable.