Just installed Stillen CBE only on 7A and it is exactly what I wanted, There is
just enough more tone when you drive normally to know it's there. Dead
quiet unless you are on it. My wife has very sensitive ears to any drone
and she has no problems with this exhaust. By the way it is not ugly like
someone else stated. If you like the NISMO exhaust looks you like the Stillen. I may-----try the HFC which I know will make it more aggressive
but right now I am very happy with what I have.
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