Option 1: American made high performance Uni-Filter air filter ensures clean air to your engine and long life.  See why a NEW Uni-Filter is MANDATORY for ALL new engines and purchase at this link.   Your one year new engine warranty applies only if a new uni-filter is purchased with this engine.  If you don't get a Uni-Filter you are guaranteed to be putting dirt into your clean NEW engine.  Stock air filters do not effectively filter air and are the number one engine killer for GY6 engines.  Don't get an engine without one.  See Details

Option 2: Performance Exhaust:  You can get the BDX performance exhaust for any of the engines above for an estimated 10% to 15% increase in raw power--see video!.  Your stock exhaust is restricting your power because the exhaust gases are being squeezed out through a tiny hole.  The BDX Performance Exhaust fixes that.  If you get a performance engine without the performance exhaust you will be restricting some of that NEW power. To see details or add the exhaust to your order click here.  Or see our video to see what this increased horsepower looks like in a race click here.

THE BDX PERFORMANCE TEAM MEMBERS ARE THE GY6 ENGINE EXPERTS IN THE USA.  BUILDING AND SHIPPING HUNDREDS OF GY6 PERFORMANCE ENGINES FOR OVER 10 YEARS.  WE HAVE A FULL MACHINE SHOP IN VIRGINIA WITH AN ENGINE TECHNICIAN AND ENGINEER. SEE VIDEO 

TAKE A LOOK AT THIS COMPARISON

 

Guaranteed Fit - No returns on engines.
Before ordering please call and speak to our technician if you have any questions regarding fitment.  Please do not return your engine--call us if you ordered the wrong engine without consulting our technician. In the very rare event that there is a warranty issue please see warranty section.