So I have a few hundred miles with the exhaust and HFCs now. There is some drone (they told em there would be with the auto), but it's not too bad and you can pretty much neutralize it if you drive it in manual mode. So when driving conditions cause there to be a bit more drone than normal, I just shift to M and am fine. Car feels good, a bit lighter and more responsive. I got the 18" resonators and the resonated HFCs for the quietest option. The car is pretty loud in the morning with a cold start, but is much quieter during cruising and loud (in a good way) when WOT. SO other than the cold start and some rumble in the low RPMs, it's pretty stealthy until you open her up. If you want to be super stealthy, Tony said the HFCs are probably attributig to 50%+ of the noise.
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Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq
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