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exaust questions need help

  1. Hellcat exausts dampening valves

    SRT Hellcat General Discussions
    Question about butterfly valves on H/C exausts and how to overide them open at all times without throwing fault codes. I believe that some members had figured out that a fuse could be pulled and valves would stay open. Anyone know the correct way to make this happen? Like the sound when cold...
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