Old thread but wondering if there is a resolution to this question...Is the OEM Nismo exhaust a worthwhile upgrade for a non Nismo car? I am looking for a slightly louder exhaust than stock and more hp, but keep the stock header and cats to keep the smog people happy. My thoughts were drop ins (K & N), Nismo exhaust and a tune.
Also, I read that the Nismo muffler is heavier to quiet the exhaust more than the non Nismo muffler. Maybe a Nismo H pipe and mid pipe with non Nismo muffler is the answer? Thoughts?
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