Quote:
Originally Posted by rons e92
I have the full Active Autowerke setup. AA catted DPs, EL Midpipe, and valved rear section.
Sounds incredible. The cold start is incredibly loud. Saturday I'm returning to the stock muffler to try to tame that.
I have a video on my YouTube channel @ronjohnco where I go over the exhaust system and you can hear it.
Let me know if you have any more specific equations.
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For the DP, did you end end adding o2 spacers or tune out any cel?