Quote:
Originally Posted by Footloose301
According to Import Parts Pro, the Nismo exhaust adds 5.4HP and you're saying you got approx 5HP more than stock Nismo, then it might be safe to say this is a 10-15HP exhaust??? I was hoping it would be more in the 15-20HP but I can live with 10-15HP increase.
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It's a little difficult to gauge as the Nismo S-tune exhaust is different than the Nismo exhaust that comes with the Nismo edition 370Z. S-Tune uses a Y-pipe configuration whereas the Nismo edition OEM exhaust uses an H-pipe.
10-15hp is typically the normal gains expected for a catback though.