A8 Challenger Hellcat OEM Muffler inlet / outlet diameter?

Discussion in 'SRT Hellcat Performance' started by TallCool1, Jun 16, 2015.

  1. TallCool1

    TallCool1 Gold Member Hellcat Car Club Gold Supporting Member Nat'l Hellcat Tech Advisor HCC Charter Member

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    Can anyone supply the inlet and outlet diameter of the OE Muffler quickly (not near car or would measure myself thanks much!)
     
  2. DrBuick

    DrBuick Gold Member

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    2.3/4
     
  3. TallCool1

    TallCool1 Gold Member Hellcat Car Club Gold Supporting Member Nat'l Hellcat Tech Advisor HCC Charter Member

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    Appreciate it thanks.
     
  4. KLR CAT

    KLR CAT Active Hellcat Member

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    2" primary headers and full 3" should really help these beasts breath once we crank the boost up.
     
  5. DrBuick

    DrBuick Gold Member

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    I will leave mine stock
     
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  6. Aaron Vogel

    Aaron Vogel Silver Member

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    Not saying i won't change the mufflers or something, but not looking change the size. I like the active valves and would like to continue using them. Even some of the aftermarket exhaust coming, you still have to take the factory valves out and install them in their exhaust
     

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