Basic kit for improving the performance of GX390s, 420 Predators, 13/15 hp Chinese OHVs. Simple to install and provides a significant performance increases

Basic kit for improving the performance of GX270 & 270/301cc OHVs. Simple to install, you can expect significant performance increases

Basic kit for improving the performance of GX160, 200s, and Chinese 6.5 Engines. Simple to install, you can expect significant performance increases

Basic kit for improving the performance of GX160, 200s, and Chinese 6.5 Engines. Simple to install, you can expect significant performance increases

Basic kit for improving the performance of GX160, 200s, and Chinese 6.5 Engines. Simple to install, you can expect significant performance increases

Basic kit for improving the performance of 224 Predators. Simple to install, you can expect significant performance increases

Basic kit for improving the performance of 208 DuroMax Engines. Simple to install, you can expect significant performance increases

As step up from the Stage 1, this kit is designed to improve the power for the GX340s and GX390s along with improving the durability.

Step up from the Stage 1, this kit is designed to further improve the power for theGX240s and GX270s by adding a larger carb and cam.

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.

For those looking to get the maximum performance without opening up the case, we offer our stage 2 kit. Same as our stage 1 kit but with the addition of a bored carb to produce in excess of 12 hp.

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 12+ hp on GX200s.

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 12+ hp on 208s.

For those looking to get the maximum performance without opening up the case, we offer our stage 2 kit. Same as our stage 1 kit but with the addition of a bored carb to produce in excess of 12 hp.

Now you are getting serious. A set-up from Stage 2 kit, we add a cam and a choice of carburetors. A billet rod and all need gaskets are also included. HP will range between 11 and 14 depending on cam/carb selected.

Now you are getting serious. A set-up from Stage 2 kit, we add a cam and a choice of carburetors. A billet rod and all need gaskets are also included. HP will range between 11 and 15 depending on cam/carb selected.

Now you are getting serious. A set-up from Stage 2 kit, we add a cam and a choice of carburetors. A billet rod and all need gaskets are also included. HP will range between 11 and 14 depending on cam/carb selected.

As step up from the Stage 1, this kit is designed to improve the power for the GX340s and GX390s along with improving the durability.

Now you are getting serious. A set-up from Stage 2 kit, we add a cam and a choice of carburetors. A billet rod and all need gaskets are also included. HP will range between 11 and 15 depending on cam/carb selected.

Now you are getting serious. A set-up from Stage 2 kit, we add a cam and a choice of carburetors. A billet rod and all need gaskets are also included. HP will range between 11 and 15 depending on cam/carb selected.

As step up from the Stage 2, this kit is designed to improve the power for the GX340s and GX390s along with improving the durability.

As step up from the Stage 1, this kit is designed to improve the power for the GX340s and GX390s along with improving the durability.

Our Stage 4+ kits allows you to customize a kit for your application. The 4+ kit starts with package similar to that of the stage 3 kit but adds a Ported and Milled Head, stainless valves, billet rockers, and a serious cam package. Options include everything from roller rockers to stroker kits. This kit will allow you to build a motor in excess of 20+ hp

Our Stage 4+ kits allows you to customize a kit for your application. The 4+ kit starts with package similar to that of the stage 3 kit but adds a Ported and Milled Head, stainless valves, billet rockers, and a serious cam package. Options include everything from roller rockers to stroker kits. This kit will allow you to build a motor in excess of 20+ hp

Our Stage 4+ kits allows you to customize a kit for your application. The 4+ kit starts with package similar to that of the stage 3 kit but adds a Ported and Milled Head, stainless valves, billet rockers, and a serious cam package. Options include everything from roller rockers to stroker kits. This kit will allow you to build a motor in excess of 20+ hp

Our Stage 4+ kits allows you to customize a kit for your application. The 4+ kit starts with package similar to that of the stage 3 kit but adds a Ported and Milled Head, stainless valves, billet rockers, and a serious cam package. Options include everything from roller rockers to stroker kits. This kit will allow you to build a motor in excess of 20+ hp

Our Stage 4+ kits allows you to customize a kit for your application. The 4+ kit starts with package similar to that of the stage 3 kit but adds a Ported and Milled Head, stainless valves, billet rockers, and a serious cam package. Options include everything from roller rockers to stroker kits. This kit will allow you to build a motor in excess of 20+ hp

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.