I have the resonated test pipes with the 18" exhaust. It's kinda loud on cold starts, but quiets down after 10 seconds or so. As others have probably stated, it's pretty tame during normal driving, but once you floor it, it screams! Absolutely no rasp or popping. There's some slight drone, but only at certain RPMs (easily remedied by adjusting throttle position).
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Current Ride: 2012 Nissan 370Z NISMO #0389
Mods: Fast Intentions Resonated Test Pipes and TDX Exhaust with 18" Resonators (#1054), K&N Drop-Ins, GTR Start Button
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