Basic Kit for Improving the Performance of GX160, GX200s, and Chinese 6.5 Engines. Simple to Install, You Can Expect Significant Performance Increases!

Maximum Performance without Opening up the Case! Same as Our Stage 1 Kit, but Also Includes Bored Carb and Performance Cam to Produce a Solid 12+ HP on GX200s & 6.5 OHVs.

Now You Are Getting Serious! A Step up from Our Stage 2 Kit, We Add a Racing Camshaft, a 22mm Carburetor, and a Billet Rod. This Kit Produces 13-15HP or More.

Our Stage 4+ Kit Allows You to Customize a Kit for Your Application. Similar to That of the Stage 3 Kit, but Adds a Ported and Milled Head, Stainless Valves, Billet Rockers, and a Serious Cam Package. This Kit Will Allow You to Build a Motor in Excess of 20+ HP!