Quote:
Originally Posted by Jordo!
Take off Nismo 
Hmm. Interesting. So a bit of hiss but no real rasp. This was with OEM H-pipe?
On my previous Z, I tried a bigger diameter Y pipe and the hiss drove me crazy. Got rid of it in under a week.
Hopefully, it won't be quite as bad 
Thanks for the info  |
Yes, factory H pipe.
The hiss will be there, I did not find it to be bothersome, even when the car was still being street driven regularly. It isn't super loud like with an aftermarket exhaust + LTH.
But that hiss will be basically the only hint to bystanders that there's anything non-stock about the exhaust. That Nismo system is pretty damned quiet while still making very respectable power.