How much would you say a used exhaust would be from a 92 Camaro Z28 with a TPI 350??

 

I am not sure what you mean.....Are you talking about putting exhaust on your Z28 and you want to know how much it would cost to buy the same setup that came wiht the car, or are you talking about putting an after market exhaust on the Z28 and want to know how much that costs?

 

I've bought all new exhaust, but my friend wanted to buy my old setup.

 

Just give it do him, let him help you with new exhaust.

 

He's right, the old exhaust is worth practically nothing. Just have him help you put it on or something and call it even. Of course it depends how good of a friend he is too. Heck, that exhaust might be worth $100 depending on the person...