exhaust

I hear this rattle noise from under my Xterra between 1600 and 3000rpms, super weird, I can’t find a loose shield on the exhaust, I thought it was u joints so I spent a few hours replacing them and the noise is still here! Maybe I’m skipping something on the exhaust? I had a shop say it’s trans...

I have a P0420 code that is not going away. Been going through a lot of threads on replacement cats and it seems aftermarket fitment is hit or miss. I'm debating keeping OEM, spending the $$$ and ensuring good fitment and function vs. aftermarket. I want to keep the system stock (no removing...

So my father made the comment my xterra would be sick if I ran a y pipe to two flowmasters and two tail pipes....has this been done before? Im interested in the price and sound.

Alrighty, this is a thread for people to list what sorts of mods you have done to your exhaust system (B pipes, Catback delete, Thorleys, headers, etc.). Please list what you have done and rate it so that it can help the rest of us out in what we'd like to do to our exhaust system once we have...