Nismo vs Stock Axle Back only.

coolvans1988

Sorry to bump the thread. But i still find posts provided a bit unclear as it led to midpipes or about the full nismo exhaust.

Short Tails got a bit annoying for the wife. So i plan on swapping those out by
adding back my base muffler. I posted this thread to see if anyone knew if the Nismo Muffler (axle part only) is less restrictive than the base muffler. I want to maximize my chances of keeping better gains between those two.

Thanks!

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AAM S-line Midpipe / AAM CAI / Nismo Muffler / Swift

Bullit79

There's a DIY where a guy cut open a Nismo muffler to make it less restrictive (and louder). From the looks of the internals, it looks like a pretty standard muffler design so my GUESS it that the Nismo muffler is not any less restrictive than the Base muffler.

Link: DIY - Modified NISMO Exhaust - better sound, better power

I had the OEM Nismo cat back on my Base for a couple months. At WOT it honestly didn't sound much louder than stock. I noticed more of a difference while cruising / lower RPMs. It's a tad louder and has a slightly deeper tone to it. I read one thread suggesting it was the dual pipe design of the Nismo that attributed to the sound difference, not so much the muffler. Hope this helps.

luigi90210

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

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Bullit79

I stand corrected. Thanks for the clarification.

Thread on my350z: Nismo 370z and 370z exhaust difference information - MY350Z.COM Forums

Base:


Nismo: