ZR-1 Net Registry Forums - View Single Post - Is a Borla Challenge Exhaust system desirable?

Corvette95 · 03-02-2021

I have the challenge Borla on my 90 build, I made dual custom 3 inch straight dual resonators instead of the restricted stock resonator. Love the sound and the power and flow is great. They are among the best flowing exhaust Marc H tested **WITHOUT** the resonator. I too had to modify (one) of the header connections to mate up with my OBX headers. (no drone BTW)

03-02-2021	#5
Corvette95 Join Date: Jan 2006 Location: Decatur, AL Posts: 1,140	Re: Is a Borla Challenge Exhaust system desirable? I have the challenge Borla on my 90 build, I made dual custom 3 inch straight dual resonators instead of the restricted stock resonator. Love the sound and the power and flow is great. They are among the best flowing exhaust Marc H tested WITHOUT the resonator. I too had to modify (one) of the header connections to mate up with my OBX headers. (no drone BTW) __________________ Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454