Quote:
Originally Posted by Firestorm_86
Really? the Legamax Premium? or the Spec-L?
The Q300 and the Legamax are the most quiet exhausts. And I think the Tanabe too.
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Quote:
Originally Posted by Alltezza
I thought those Q300 and Perrin Catbacks were actually pretty quiet
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Well, when you have no cats and a free-flowing header... the noise is dramatically louder
The honeycomb (square in the BRZ/FRS) of the cats kills sound waves that are longer, but when they'er gone, they get to the exhaust/muffler, and wreaks all sorts of havok on the sound level.