OK guys i want to do some stuff to my car, i have nismo catback and JWT popcharger i wanted to do more what are the best mods i should choose from in order from best to worst? JWT flywheel and clutch, DC headers, Crawford hi-flo cats, UR crank pulley?

 

your best mod would be the seach button. its got vast amounts of information at your finger tips. plenum high flow cats lightweight pully flywheel cams are all good choices.

 

Cats/Test Pipes and Plenum. Dyno proven at ~17whp.

 

Pop charger, Injen dual angled, Craford cats, Crawford plenum.. Those are my first 4... Than I am going to find a way to get it tuned rather than go with TS flash..

 

Another company does reflashes: Altered Atmosphere. What do you mean by Injen dual angled? They discontinued the angled tip exhausts for the 350Z, you must mean dual angled mufflers, straight-tips, unless you found somewhere that has the angled tip Injen.

 

NO MODS!!! you might want to check out this thread. you might even consider getting a nismo wing after reading this

https://my350z.com/forum/showthread....hreadid=105762

 

Depends on your area for those stock numbers. Those numbers are not SAE corrected, it was a really cold and humid day (rainy day).

Genearlly, the Z works fine at its stock levels, some mods will help it, but a visit to the dyno is your best bet.

 

meant straight tip oops.

 

Basically, anything to do with your exhaust would be the biggest help, next to cams etc...
A full exhaust, high flow cats, and headers, that's a huge difference. Cams too, they help with power distribution all through the powerband.
Don't put too much faith in plenums.

 

Why not on the plenums?

 

Exhaust + test pipes, headers, plenum, pulleys

 

when I put my crawford plenum on with no other mods other than the JWT intake, I didn't notice the "holy ****!!" difference that some people claimed. It did sound different and did seem like there was more power from 4500 and up, but it's not like my jaw was dropping. I've heard that you have to upgrade something in the exhaust chain like the cats before you get the real benefit of the plenum.

 

Noob question....wats a plenum?

 

The plenum is the intake plenum. The top part of the intake manifold in our case. Here's a link to Crawford's new cast plenum: https://my350z.com/forum/showthread....hreadid=106301