S&S Super G & D Carbs. The ThunderJet is a jetable, externally mounted third fuel circuit that improves the performance of 2 circuit carbs such as the S&S Super G and Super D. In a performance application, the tuner generally encounters problems jetting the carb to give good, crisp mid-range response and still have strong top-end power. The ThunderJet, a high speed circuit, delivering needed fuel to the engine at higher rpms (4500 & up). ThunderJet kits come with a clear fuel line (No longer available in Blue), complete installation & tuning instructions and extra jets.
Some machining to the carb bowl and body is required on most carbs. NOTE: No longer comes with blue hose.The hose is now clear because the blue hose turns green over time. Be sure to add me to your. The item "ZIPPERS THUNDER JET PRO KIT FITS S&S SUPER G & D CARBURETOR HARLEY DAVIDSON" is in sale since Tuesday, September 16, 2014. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Air Intake & Fuel Delivery\Other Intake & Fuel Systems". The seller is "crowescustomcycles" and is located in Battle Creek, Michigan. This item can be shipped worldwide.