I searched a bit, but could only find complete exhaust kits and it's too late to call up any vendors. I lucked up on a used Bonez hi-flow cat and a used RB header and need to know where to get exhaust gaskets to marry this up to a stock y-pipe. It know it can't be stock, so who do I call?

 

try your local parts store, i picked up a few from Kragen that fit the bonez HF cat just fine.

 

it would help if u can bring the part in...then just tell them.."i want a gasket to match this"