Dynojet Thunder Slide Jet Kit For Harley Big Twin Evolution 

Designed for waking up the carburetor on Harley engines with an aftermarket air filter or exhaust system. The revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and mileage. The unique set of lift holes moderate how the slide moves with respect to throttle position; the faster the slide opens, the quicker the throttle response.

Features:

• Kit comes with jets, needles, clips and other necessary parts for CV carbs
• Instructions included
• Made in the USA

Note: This product is intended to be used only on racing vehicles on closed courses, and not for use on roads or vehicles otherwise subject to emission control requirements. In California, this product should not be used on any vehicle that is registered or licensed for use on public roads. Photo is for reference only.