Our exclusive 4-into-1 step header. The primary tubes of this regular steel header are 1.5″ diameter and increase to 1 5/8″. This ‘step’ helps scavenge the exhaust gases while maintaining high gas velocity – the result is the strong midrange torque of a 1.5″ pipe header with the high end of a 1.625″ header. They’re great for performance street cars and for race cars up to about 175HP (SCCA ITB and ITA cars, VARA, etc.). These are top-quality headers designed specifically for the BMW M10 engine – dyno tests have shown they out-perform every other header on the market.
Please allow for 2 week lead time for ceramic coating.
Note 1: These do NOT fit right hand drive cars.(Australia, UK, Etc.)
Note 2: The headers are made from mild steel. To prevent rust and corrosion, consider either ceramic coating (see main photo above) or using high-temp paint. Ceramic coating is special order, please allow for an additional 1 week lead time. Uncoated headers are painted black for protection during shipping, this black paint will burn off once headers are installed.
Note 3: For street cars with a stock exhaust or our stainless steel exhaust system, order a 2.5″ header Collector Adapter (see the link at bottom of this page).
Proudly made right here in Southern California.