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Going from Borla to Stock:ill effect on tune?


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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?

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