Shipping Cut Off times: USPS 9am | Fed Ex Ground is 12 noon | Fedex Express is 2 pm


We recommend FedEx as USPS delivery times can vary
Large orders, engines, heads, custom, special order, etc may not ship same day

Note: Due to fraudulent activity, new customers must ship to billing address! Orders received with different shipping addresses will SHIP to the billing address


Header, Black Pipe, Screw end for Briggs muffler, GX200, GX160, 6.5 Chinese OHV, & 212 Predator Hop Up Kit - GX200, 6.5 Chinese OHV's, Stage 4
Our Price: $27.99
Our Price: $619.99
Header, Black Pipe, Screw end for Briggs muffler, GX200, GX160, 6.5 Chinese OHV, & 212 Predator Hop Up Kit - GX200, 6.5 Chinese OHV's, Stage 4
Has fitting to allow Briggs screw in muffler (5 hp). Muffler not included. 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.
Header, Mini Bike, Single, Side Outlet, GX200, 6.5 OHV, & 212 Predator, Flared End *(1 5/16") Header, BSP Pipe, w/RLV mini 91
Our Price: $24.99
Our Price: $39.99
Header, Mini Bike, Single, Side Outlet, GX200, 6.5 OHV, & 212 Predator, Flared End *(1 5/16") Header, BSP Pipe, w/RLV mini 91
Mini-Bike pipes that exits over left side. Great for applications where there is not enough between tire and seat for Center Pipe.
Pipe is flared to 1 5/16" for use with RLV 1 5/16" Mufflers. Can also be used w/o a muffler for maximum performance and sound.

Picture for Reference only.
These make more power than any other BSP pipe (may differ from picture). Bracket or Gaskets NOT included.
We do not recommend this pipe except for BSP/AKRA racing classes. This is a spec pipe designed to reduce the RPM. It may cause overheating if used for any other application. For karting applications where there are not any rules or other off-road classes, use the RLV or other headers listed here
Hop Up Kit - GX340 - GX390, 420 Predators, and 13/15hp Chinese OHV, Stage 2/3 Engine, QMA/USAC - GX120, Stage 1
Our Price: $449.99
Our Price: $479.98
Hop Up Kit - GX340 - GX390, 420 Predators, and 13/15hp Chinese OHV, Stage 2/3 Engine, QMA/USAC - GX120, Stage 1
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.

Entry Level GX120 Specially prepared for 1/4 Midget Racing but still economical.