Carburetors (carburettors) jet kits Suzuki Boulevard S40 2016 - 2018 (made by Dynojet - USA)

Stage 1 is used with the stock engine and stock air-box.
Designed with different calibrations (all included in the kit) for stock air filters, aftermarket air filters, stock pipe, stock manifolds with racing mufflers or complete racing exhaust system.
Power increase is approximately 5%.