American Racing Headers Long System, 1-7/8" x 3", 2009-13 Corvette ZR1 - Not Catted Porsche 970 Panamera S which runs cooler

which runs cooler

Performance An ECU software upgrade improves horsepower

5" diameter angle cut perfection with Fabspeed logo

Adds 21 whp and 32 ft-lbs of torque significantly increasing throttle response

With the radiator design GM used on the C5 Corvette

American Racing Headers Long System, 1-7/8" x 3", 2009-13 Corvette ZR1 - Not Catted Porsche 970 Panamera S which runs coolerWith Race Inspired Technology built into every system, you're looking at the very best the performance exhaust industry has to offer. Our C6 ZR1 systems are available with 1 7 8" or 2 primaries and your choice of 3" x 3" or 3" x 2 1 2" catted or non catted X pipe mid section. Of course, these are manufactured using the highest quality 304 S S available and require no modifications to install. All systems come standard with merge collectors and