Quiet -- stock like sound level -- turbo back exhaust
Stock like sound level turbo back exhaust is what I’m currently evaluating. Cobb downpipe and titanium exhaust. 75dB crusing inside the cabin vs 72dB with a stock exhaust. Tone is similar just a little bit louder. The low frequency bass when AVCS kicks in at 3k is just like stock as well. It’s a bit quieter than Q300 when new but without baffles that break down I anticipate Cobb will stay consistent over time. I have no idea why a non resonated titanium exhaust is so tame so there’s room to add a Vibrant resonator or Helmholtz in the midpipe to tame it even more. But any quieter just stay stock.
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Last edited by EightTenths; 12-15-18 at 04:12 PM.