Muffler replacement

Tiny
MICK MCEVOY
  • MEMBER
  • 2004 DODGE RAM
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 86,000 MILES
I'm replacing a bad muffler on my dual exhaust, is it advised to go ahead and replace the other muffler as well?
Thursday, October 10th, 2019 AT 2:53 AM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 13,465 POSTS
Welcome to 2CarPros. Yes. The reason is that you want both banks of the engine to have the same amount of back pressure and exhaust flow to keep the converters happy and reading as close to the same on both sides to avoid setting a code. The interior build parts are usually different depending on the make and model of the muffler you use and that can create an imbalance, as can the internal corrosion of the components used.
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Thursday, October 10th, 2019 AT 8:16 AM

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