I picked up a used Milltek Catback for my '06 MCS, and am wondering if I should get a new gasket for between the oem manifold and the piece that connects to it. Also, what about the connection between the resonator and the muffler connection.

If so where should I get the gasket from. I've used fel-pro in the past for my mustang, but I’m not to sure on what the mini would use.

 

New gaskets are a good idea, as well as clamps. I got all OEM from dealer. May need new flange nuts/bolts too depending on how easy your old system comes apart.

 

So you think the oem gaskets are the way to go? I figured the opening from the manifold to the resonator might be bigger.

 

when I put the B&B exhaust on the OEM gasket after the cat was too small for the opening. It fit the bolt holes, however the inner part of the gasket protruded into the exhaust path.