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straight pipes

  1. New Member Introductions
    I have a 2014 Challenger RT, 5.7 liter. I've added the Mopar cold air intake, and for the exhaust, cat-bak, Flow master 40. I'm using the stock exhaust, simply replaced the mufflers with flow master 40's and removed the resonators at the end, replacing with just straight pipes. The problem...
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