Save some money, the stock cat on the SE-R is not a flow restriction, just use the one you have. Anything after the cat has no effect on emissions, so the Greddy will be fine. Hotshot headers come with connections for O2 and EGR, as long as you hook them up, emissions will be fine.
You might also find 'free' HP by doing a thorough tune up.
Need some help here!
After a rainy day i found drops of water falling from behind glove box, in order to find the leak i took the garden hose and turn on the water for 15 minutes (and i gave the car a heavy bath) ... nothing happen, but when I started the car and drive for a while ...
I am jumping into this VQ35HR 200sx swap pretty quickly just a couple things I am stumped on and looking for some opinions on motor mounts (I know I’m going to have to fabricate things) which tranny is best to use , which axles to run and any suggestions on wiring harness and ecu
I have a 1998 Nissan 200sx and the hazards are not working. I’ve picked up multiple replacement hazard buttons and none work. The turn signals work and I also replaced the electronic flasher. I’m stumped, what could be the problem?