2007 Dodge Sprinter performance muffler

2007 DODGE SPRINTER
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MEL333
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Engine Performance problem
2007 Dodge Sprinter 6 cyl Two Wheel Drive Automatic

I have a 2008 motorhome built on a 2007 dodge sprinter 3500 with a gas 3.5L V6. It has two catalytic converters and two other large mufflers. I was wondering if I replaced one of the mufflers with a performance muffler, would it help my gas mileage and would it cause the computer to display a check engine light?
Jan 22, 2009 at 4:31 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi:
Don't change one. That will cause a difference in back pressure to the engine. Chances are it will set a code (eng light) and make the mileage worse.
Mar 12, 2009 at 6:57 PM
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