Any recommendations?

Can't stand the fumes anymore

Thanks!

 

I am using 338015

I have had the best luck with a 2.25 inlet outlet, even if using 2.0 pipe. If at all possible, the cats like the air pump, but if you took it off, there is a lot more to put back on than just the airpump.

You dont mention if you need to pass emissions, but here are notes for LEGAL cats, and you can select according to price iof you don't really need to be legal (you only need one cat for smelliness)

 

I'm running an EPA certified GESI metal substrate converter.