Question: Which gasket should I use for a stock catalytic converter mated to a 2.38" b-pipe (Mugen twinloop)??

Obviously running stock "triagular" gasket will fit perfectly for the cat, but it'll block some of the holes of b-pipe (since it is larger in diameter). On the other hand, if I use gasket for 2.5", then there is only a little material to seal up the catalytic mating surface... which might lead to exhaust leakage. (Does any of this make sense??!? )

Anyone running mugen twinloop mated to stock cat?

Thanks.

 

stock doesn't not have a gasket.

bolt it up and r0ll with.

 

Doh! Thanks for the info, Will! I didn't have helm's manual last night and I couldn't find the stock gasket! Sweet, so I don't need to buy any gaskets.

I'm a we-todd.