Also, I have a question for all you metro owners, would I be better off making my own exhaust with a obd2 compliant catalytic converter, or just buy the entire Oem exhaust? I can get everything oem manifold to rear bumper for about $300 or spend just $160 on the cat section and make my own after that, most likely with a cherry bomb. Would just the cat and a glass pack have enough back pressure or would it hurt mileage? I would definately rather save $140 but if it'll hurt mileage I'll just spend the money
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