Greddy EVO 2 with helix downpipe?
Registered User
Joined: Sep 2003
Posts: 108
From: Sacramento, CA
Car Info: 2007 Nismo 350Z
It's not much louder than stock at idle. But at WOT it opens up and you can definitely hear the boxer rumble, nice and deep. I got a Helix catted downpipe and Greddy Evo catback, and I love it 'cuz it's nice and quiet.
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