Borla Exhaust posted by huey24nissan(NC) on August 12, 2008 at 11:27 AM
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It is less than 2 1/2 inches in diameter, so if you are going to go with fairly large turbos in the future, I'd go a different route. With smaller turbos I doubt that you loose much off the top end and it is pretty quiet. The diameter matches up pretty well with some of the "cheaper" down pipes and test pipes and should stay fairly quiet. The bends may be tighter radius than others, but other than that, I don't know how they could be much better.