ortiz73ca

No problem

Also, in all sincerity, I think if you picked up a "take off" Nismo (the one with the H-pipe) at a decent price, you aren't going see much more springing for a different cat-back. Really to pick up more you'd need either headers or at least high flow cats. With either of those you will DEFINITELY need a tune.

With your current mods and OEM cats, a tune might pick some more power, and you could improve throttle response (and shift speed if AT), but otherwise I'm sure you are running safely without a tune at present.

Hey there,

It's hard to say exactly, but probably a solid 10 -15 whp or more over stock at various points in the rev range on a dynojet with SAE correction.

If you search through my thread with all the dynos (search for "proven power dyno" and my username) or look over the dynos in my gallery (most are in "Back in Black") you should be able to get a good idea as several of the dynos are of those or similar mods before and after tuning.

the nismo muffler is a better flowing muffler than the base Z, you can google around for the flow pattern, it just isnt louder than base

go aftermarket. i have to stick my head out the window to hear mine.

also the nismo exhaust that comes on the car is made by Autech. theres a little nameplate welded to it.

s-tune is a quality piece made by Fujitsubo and offered as a Nissan accessory. the nismo is an oem piece that comes with the Nismo trim. if you want an exhaust, it's advisable to go aftermarket...

The S-tune has a slightly larger diameter Y-pipe, which I can tell you from experience is prone to cracking, and made about 1-3 whp throughout the rev range (search through my proven power dyno...

yeah, that's a good plan.

That would be a steal since the wholesale cost at the dealer is $1,600. The NISMO exhaust has a nice low rumble that won't drive you out of the car, but probably won't provide the gains as some of...

piping design, the nismo s tune exhaust is a bigger version of the regular 370z exhaust, the nismo 370z exhaust is a true dual exhaust with an hpipe instead of a y pipe

Okay, two things. First: the S-Tune exhaust is a joke, it doesn't add any appreciable gains and I don't think it sounds very good. Second: If the OP is talking about the OEM Nismo exhaust, it's...

Never scraped here while on swifts. I live in New England too.

^^^ For the S-tune, I agree. For the Take off w H-pipe, I beg to differ... ...

The so called Nismo cooler wasn't even designed by the Japanese Nismo division. It was designed by Nissan Motorsports in America. It uses a standard 34r Setrab core with SS lines and a generic...

That's version 1 exhaust, ~3/4 of an inch lower.

83174 Look what I found waiting for me when I got home!! Fresh out of the box! :happydance:

Also to weigh in on the bolt on vs extended stud thing, I believe extended studs are safer, but bolt on are more than safe enough. At least for the Z1 ones, theyre built really well. That being said,...