I just installed a Monza cat back. It is leaking bad between the cat and b-pipe with the new gasket. Any one else have this problem? How do I fix it?
Do I need a different type of gasket. They gave me a oval gasket. Do I need a ring gasket?

 

hmm..they gave u 2 gaskets? cuz the catbacks..most of them are 2 pieces..i have the cattman one n it onli came wit 1 oval gasket to hook up the b-pipe to rear section muffler...well if u did get 2 gaskets...maybe u switched the gaskets around?...y not just try using the old gasket? thats what i did for now until i get a new cat.....anywayz..good luck

 

No just one gasket. The b-pipe is in 2 pieces and then the muffler. The other 2 connections are U bolts (pipe clamps)

 

Its a pace setter, what did you expect.
Might go to pep-boys or something and get a thicker gasket.