Hey guys im about to install a berk header and test pipe. It came with the gasket for the test pipe to exhaust, but not for anything else. Can I use the donut gasket for the cat on the test pipe? Or do test pipes not use these and just bolt directly up to the header. Also wheres the best place to find this gasket (if i need it) besides my honda dealership? Im also going to replace the exhaust manifold gasket while the headers off just for peace of mind.

 

i think some do, some don't. depends on what you get.

you could use your old donut gasket. I've alway used the old one.

you could get one from the dealership, but they're expensive...

i would change the exhaust manifold gasket though... with sealant added.

 

check how it looks physically...if it looks like its worn and breaking apart then replace it...I've always reused mine without any problem.

 

with my invidia TP i couldnt use the donut because it was a little too big