Used for GY6 150cc 157QMJ based engine.

Extra weld-on mounting flange is also included.If you don’t know how to do modification on head pipe,cut old flange off, welded on new flange to your stock head pipe will also be fine.

Modifications in mounting of the Head Pipe may be necessary.You may also have to Grind a Half Moon Shape in one of the Mounting Brackets to Clear the Engine Dip Stick

On some models once the Head Pipe is mounted it may need to be heated and slightly bent out for clearance and alignmen A great up-grade 7 inch length exhaust system when installing a big bore kit or a great replacement exhaust for a broken stock exhaust system.

Package includes all the parts showing in images.
Product description

Potentially add more performance, speed and power to your bike with this high performance exhaust pipe.  Also provides a stylish look and a deeper exhaust tone  Fits on many models of GY6 Scooters and Mopeds Four Stroke 50cc with the GY6 pipe for the GY6 application (some modification may be required).  It will not just “bolt on” to every scooter model. You may need to bend the brackets or make other modification to make it fit Comes with brackets welded to the pipe for the GY6 application. (some modification may be required).  Please Note: All head pipes and brackets are chrome plated carbon steel.  Please Note: This is designed to be mounted horizontally , if your mounts differently this may not serve as a suitable replacement.  Please choose the correct one that fit your vehicle.  Package includes all the parts showing in images.