Quick Time Performance down pipe!
Holly mother of God is this thing loud with the electric butterfly valve open on the cutout!
I will be dyno tunning with it open in the morning, see if it gives me false knock with all the noise. If not, I expect to have as good of numbers as a car with a full turbo back exhaust. If that works out well for me at the end of the tunning sesion I will shut the valve and do one last run to see how much power difference there is with it closed and all of the exhaust flow going through the stock cat back exhaust.
Any bets on weather false knock makes me get better dyno results with the valve shut?
Any bets on power loss (or gain) with the valve shut?
WRX at 218 WHP (dynapack, aprx 275 BHP) and EVO at 375 WHP (Mustang dyno, aprx 510 BHP) on pump gas.
Last edited by Fourdoor; 11-14-2005 at 07:34 AM.