ZR1 exhaust 28+ up on dyno
I concur, however there is an article on this website where a ZR1 c4 picks up 18 HP with just a Flowmaster exhaust and reaches +28hp from stock exhaust with custom mufflers and pipes. As you know the 90-91 exh resonator is a big restriction in the stock exhaust; I...
1991 Corvette with OBX Exhaust and chip dynos 340
I too am considering the OBX exhaust after this weekends ZR1 Net Wazoo dyno pull day. My stock 1991 6k mile ZR1 pulled 321 hp with just a chip and K&N/open airbox. Right before that another member's 1991 ZR1 with chip and OBX Exhaust pulled 340...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.