Quote:
Originally Posted by Nikkolai
I am not sure where you are going with this. Did you mean sound or power? Unless you went to the dyno and performed tests back to back between stock muffler and Nismo muffler then you will not know the difference just by "feel." I have read that the Nismo exhaust is around 5-8 hp range over stock (probably due to H-pipe configuration, true dual setup).
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I guess I am wondering if anyone has taken apart the mufflers themselves. I found it surprising that the NISMO muffler would be so much heavier than the stock, unless it is actually quieter to reach a similar decibel range but more efficient due to the "true dual" H pipe setup. One of the complaints I have read on the forum was around the sound output being virtually the same with the NISMO vs the stock. Where I am going with this is in regards to the weight vs performance vs sound. I would have presumed that the NISMO system and more specifically the muffler's weight would have been lighter than stock, not heavier.