D Series 4-1 Hood Exit Race Exit Header Honda Acura EG EK DC2 Civic D16Y8 D16Z6 Fuel Cut Displays your vehicle's compression

Displays your vehicle's compression

2004-2020 Subaru WRX STI (6-Speed Manual)

Construction Equipment and Much More

1968-1971 Chevrolet Chevelle Concours L6 4

This flange adapter is the special "Slim" flange which will perfectly fit Subaru WRX (2004-2007) & STi (2004-2017) models

D Series 4-1 Hood Exit Race Exit Header Honda Acura EG EK DC2 Civic D16Y8 D16Z6 Fuel Cut Displays your vehicle's compressionD Series 4 1 Hood Exit Race Exit Header Honda Acura D15 D16 EG EK DC2 CRX Si D Series hood exit race header (4 1 Megaphone) features a true 4 1 Megaphone merge to create equal exhaust flow. A megaphone is added next, to release pressure and increase the speed of the exiting exhaust gases. A small reverse cone is placed at the very end to provide a tiny bit of wanted back pressure. This header delivers the best peak horsepower gains while utilizing a 2