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Discussion Starter #1
What size are the inlet and outlet on the mufflers for the Rt ? 2013 if it matters?
 

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Discussion Starter #4

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I was told the stock RT pipes are 2.75"
Think about it, the manifold collector is 2.5" so is are the stock Cat pipes, so the cat pipes need to slide into the 2.75" pipes to be clamped onto, am I right?
 

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2.25" - 2009-2016 (with automatic transmission)

2.50" - 2009-2016 (with manual transmission)

2.75" - 2017-up (all R/T Challengers)


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