Dynojet Research Thunderslide Jet Kit - Twin Cam - 8731

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. Revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and mileage. Stage 7 kits are for 80 plus horsepower engines and include a taller carburetor top for more slide movement. Include jets, needles, clips, carburetor top and other necessary parts for CV carbs. Made in the USA.