[qwertykerr]

How do I accomplish attaching a 3inch high flow cat to the stick exhaust without leaks? The flange on the 3 inch appear to be nearly impossible to line up with the stock flanges? The overlap is just tough it seems.

 

[qwertykerr]

Does permatex ultra copper make any sense?

 

[dnguy28]

You could do that, but it still might leak later. I ended up using an adapter flange from ETS to connect my test pipe 3", to the stock downpipe 2.5".

ETS 08-16 Mitsubishi Evo X Adapter Flange

ETS 08-16 Mitsubishi Evolution X Adapter Flange This gasket increases the surface area of the flange to ensure a better mating surface between your mid pipe and downpipe

www.extremeturbosystems.com

 

[qwertykerr]

Thanks I'll have to order that. The ultra copper worked. Took it for a spin today and no leaks. But that adapter seems more robust.