Question: Corsa Exhaust system

[bsmurf1962]

I had Corsa put on my 94' sounds great, but my question is to the panel of experts, why are the pipes on the inside black with residue, and the out pipes are still clean, is this normal.:confused


Thanks "MURF"

 

[90 Corvette ZR-1]

totally normal. as far as I know only one tip, like on the oem system, actually works

 

[bsmurf1962]

Doug,
I thought all four tips would work..

thanks for your reply.

 

[90 Corvette ZR-1]

Doug,
I thought all four tips would work..

thanks for your reply.

The easiest way to tell is to take a flashlight and look through the pipes and tell that way. By the way my name is kevin, Doug was one of the founders of pirate racing.