3rd Gen High Performance and Accessories (5.9L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!
View Poll Results: mpg increase?
yes
16
43.24%
no
21
56.76%
Voters: 37. You may not vote on this poll

Exhaust= mpg...Poll

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Old Sep 6, 2006 | 06:53 PM
  #1  
Lrdchaos's Avatar
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From: Tulsa OK
Exhaust= mpg...Poll

As the poll states, I am looking at adding a cat back exhaust and was wanting to know if you have gained any mpg with the exhaust....Thanks
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Old Sep 6, 2006 | 07:05 PM
  #2  
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From: Big Spring (now Stephenville), Tx
What no maybe? I can't tell you on a cat back having the muffler off I couldn't really tell a difference.
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Old Sep 6, 2006 | 08:49 PM
  #3  
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From: Batavia, Ohio
There was deffinately an increase of at least 1mpg with my mbrp muffler. still have the cat on
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Old Sep 6, 2006 | 09:04 PM
  #4  
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From: Bend, OR
no cat, mbrp duals with mbrp muffler, no difference in mpg.
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Old Sep 6, 2006 | 10:49 PM
  #5  
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From: Denver, CO
Mine probably went down when I removed my muffler, but only because I am always getting on it because I like the sound
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Old Sep 7, 2006 | 07:35 PM
  #6  
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From: Rochester NY
Milage

I grabed about .5 mpg from the mbrp that I put on. I gained another 1 from the air intake.
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Old Sep 7, 2006 | 07:53 PM
  #7  
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From: Michigan
my 5" magnaflow is from the turbo back but I have seen a small increase in mpg. I am sure I would see more if I could keep my foot out of it.
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