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One of the very first things I plan on doing is disconnecting the exhaust flapper valve, and running it open at all times, because I agree 100%
Even the JB4 guys said the "best" I could hope for would be 30-40hp more than stock.... but with all the added potential issues (CELs).... I think I'm just going to skip the tune..... at least until it's more reliable.
I have tons of parts already here just waiting for the car to arrive (January??? Fingers crossed).... but the exhaust will be my first "mod".
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