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Well the idea is not to remove the cat but rather to use a race one. Also I am looking to gain 25-30bhp not from the exhaust alone but also from changing the air filter and adding the RPi Intake Scoop.
I am also open to suggestions about a 2x dual exhaust system, meaning to make it look like the M version with left and right exhausts. I am willing to swap for the M bumper if needed.
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