Did you unplug the battery?
Do you have a tune?
I heard that sometimes the cars ECU doesn't realize its had modifications done to it til a proper tune is made or you drive it a certain distance and the computer recognizes everything..
To me it just sounds like you have an aftermarket exhaust and HFC.. Its not that loud in my opinion. But then again, I have short tails so everythings loud.
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2009 Brilliant Silver BASE 7AT | TEIN S-Tech Springs | K&N Drop Ins & z1 Maf Tubes | AAM S-Line Short Tails | 5% Tint | 20MM Spacers | Sport Spoiler NickTurnon's 370z Build
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