Yea the NISMO exhaust is still quiet. Alil deeper than the regular oem exhaust. High flow cats or test pipes do add a deeper growl to it. Test pipes make it alil louder. When i had it on my car i put high flow cats on and it was an improvement.....but in the end i wanted louder haha. If you are interested in the nismo exhaust i actually have one in the for sale section.
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Takeda stage 2 CAI, Z1 HFC, GREDDY Turbo TI-C
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