I know warpspeed sells a 3" test pipe with their 3" exhaust system, however mine has the cat on it. Anyone know if they sell that alone or somewhere I can get a 3" one aside from custom making it?

 

Thers a company named SARD that makes a torque control valve that replaces the cat and gives you more low end torque at lower rpm's and better high end power at higher rpm's. I have one at my work I just need to install it. If you want to check it out go to (more-japan.com) and click on the SARD link than engine performance and then exhaust and you can see it for your self its pretty cool. they dont list that it fits a maxima but it should I think most of the cats are the same size on Nissans

 

Venom, Ptatohed and I got ours from budget. IIRC, it was around $25 shipped.

 

So are you using a 2.5" test pipe? Because I already have that one but wanted a 3" one so it was the same diameter as the rest of my exhaust. I wasnt sure how a 2.5 strait pipe flows compared to a 3" cat.

 

Oops. My bad. Yes, we have 2.5" test pipes. Still, doesn't budget have 3" test pipes? I thought so, but maybe I'm remembering incorrectly. They would be the cheapest IMO.