Perforated Tube Mini My 20 25mm Axle This header is designed to

This header is designed to restrict exhaust flow to the exhaust system via a restricted port size on the header

to prevent slippage or damage to bar during operation of kart

Specifically fits IAME X30

Each clamp features a recessed opening to fit an M10 allen bolt into the center of the clamp

with all pictured included

Perforated Tube Mini My 20 25mm Axle This header is designed toPerforated Tube for the Exhaust on Rotax Max Evo kart engines, specifically the MY 20 Mini Max engine. This perforated tube allows exhaust gases to flow from the exhaust pipe through the exhaust matting and into the resonator for proper expansion of the exhaust flow and overall performance of the Mini Max engine. Note: This perforated tube is different in sizing from the Mini Max to the Micro Max. Make sure to use the right tube for your application!