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Header, RLV 5438C, GX200, GX160, 6.5 Chinese OHV, & 212 Predator Hop Up Kit - GX340 - GX390, 420 Predators, and 13/15hp OHV, Stage 4
The number one selling kart pipe, Three Stages, 19 1/2" X.940"/1.075"/1.185"

The Stage 4 kit starts with package similar to that of the stage 3 but adds a Ported and Milled Head with stainless, stainless valves, stud kit, & HD valve train components. This kits allows up to 35+ HP out of a GX390 and 40+ out of 420/440cc engines.

Hop Up Kit - GX240, GX270, 9/11hp OHV, & 301, Stage 1 Engine, Racing, 6.5 OHV, Street & Track Special - READY TO SHIP SPECIAL
Basic kit for improving the performance of GX270 & 270/301cc OHVs. Simple to install, you can expect significant performance increases

6.5 Chinese OHV economically prepared for stock type racing and for off-road applications need more power than stock.

Hop Up Kit - GX240, GX270, 9/11hp OHV, & 301, Stage 4 Hop Up Kit - GX200 & 6.5 Chinese OHV, Stage 2
For building a serious a GX270 or301, the 4 kit starts with package similar to that of the stage 3 kit but adds a Ported and Milled Head with stainless, stainless valves, stud kit, & HD valve train components.

For those looking to get the maximum performance without opening up the case, we offer our stage 2 kit. Where possible, we only use genuine Honda components to improve reliability and power. Same as our stage 1 kit but with the addition of a bored carb and to produce a solid 10+ hp on GX200s.