Quote:
Originally Posted by wparsons
^^ Based on what? From dynos I've seen the gains from the TRD are about half what the better exhausts get.
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Lol half of 3 whp??
Catback will have little to no difference.You'd be better off finding the lightest cat back and talking about the performance from being light weight.
Only two exhaust pieces that affect performance, headers and front/down pipe.