bbjones121 Posted December 12, 2008 Share Posted December 12, 2008 I am running a Crucial uppipe, Cobb catted dp, Perrin EBCS, Light crank pully, K&N drop in and a Borla CBE. I am getting a protune tomorrow with the Borla installed. If I take the Borla off my car later and go back to stock, what type of performance differences might I have, if any? I know the ecu will adapt some, but enought to compensate? Or how about if I switched to a SPT exhaust down the road? I am guessing that the SPT is more freely flowing like the Borla, so would the ecu adapt better with another free flowing exhaust over the stock? Link to comment Share on other sites More sharing options...
jim1969 Posted December 12, 2008 Share Posted December 12, 2008 probably not a big difference. Link to comment Share on other sites More sharing options...
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