DME custom 4 into 1 big tube step headers are built to order for any application. All systems are made to order and take 3-5 weeks to build.
DME’s header is a 1 7/8″ to 3″ diameter step pipe 4 into 1. The big tube step header is designed for large engines, NOS motors, and all-out Grudge bikes (short-necked and d-raked). Fits flush with the bottom case.