Quote:
Originally Posted by captbilly
I can tell by the number of systems available that there must be a bunch of people buying these aftermarket exhaust systems, but if you look at the numbers you can see that the gains are minute and the costs very high. And remember that even the tiny performance gains claimed by the manufacturers of these systems are highly dubious. It is unlikely that any exhaust system will realize a consistently statistically significant performance gain over the stock system.
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All very true. For me, the $3k or so was worth it for sound and appearance alone.