Exhaust Manifold & Downpipe S/Steel 2001-05 - 903-704 - Cobalt

Exhaust Manifold & Downpipe S/Steel 2001-05 - 903-704 - Cobalt
Racing Beat has developed the "Cutting Edge" in MX 5 manifold header technology, utilizing both chassis dyno and road testing. Their headers incorporate a tuned 4 into 1 configuration to optimize exhaust gas scavenging and power output, while improving exhaust note. Hundreds of development hours and over 200 hours on the dyno were used in the refinement of this header.The Racing Beat 4:1 header has been tuned to provide horsepower and torque improvements throughout the entire RPM range. Equal length header utilizes 14-gauge polished stainless steel tubing of 1.7” primary and 2.375” secondary diameter with thick cast stainless steel flanges and is designed for the 1.8l manual transmission cars.Please note: Will not fit with Jackson Racing Supercharger equipped cars.It is not USA CARB approved and therefore we cannot ship to an address in the state of California.