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So I did the secondary cat and 1st resonator delete last night, I thought it would be much louder then it was not as crazy as I anticipated. When I was parking my car I can here the popping from the exhaust in m2 mode at idle, at this point I knew the valves was being restricted down by the ecu. I am looking to do this mod today and hopefully have a wonderful sounding exhaust setup. Cost to do the secondary cat and primary first resonator was 300 dollars at a muffler shop for context.
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