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Originally Posted by 90lazerRST
Um yea, 1st gear feels normal, 2nd gear feels normal, but 3rd gear up doesnt seem to pull much.. could just be me going from loud as hell to quiet exhaust.
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No, it's just you going from a free flowing exhaust back to the stock restrictive one. And if you are still running the original stock cat it probably so plugged up it's worthless, even more restriction.
I've heard the "ground strap" helps ground the O2 sensor for accurate readings...but all my friends that upgrade exhaust leave it disconnected with no ill effects. That may only be the case on 2g with a rear O2, I don't know.