Straight Pipe +/- MPG

[lazermule]

Searching around a few different forums, I have found some contradicting views on deleting the muffler on my 2002 HO CTD. Some have reported a +1 mpg increase and lower EGT's deleting the muffler, and some have reported a 1-2 MPG decrease deleting the muffler which doesn't seem logical.

Anyone care to weigh in on this with their thoughts?

Thanks,

LM

 

[tonkadoctor]

IMHO the guys reporting lower MPG prolly have a heavy foot, don't do math too well and like hearing the new sound & power a little too much.
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But I could be wrong too, it's happened once or twice to me.

 

[Mike]

You will experience lower EGT's. Your mileage may vary.....




I'm running a 5" straight pipe.

 

[Headhunter_5.9]

I'd personally have to go w/ Tonkadoctor on this one.

the drop in fuel milage could FOR SURE be from wanting to hear it!... I know I was guilty a time or two!... especially if there is a building or long underpass in my path!

my pennies added to the pile!

 

[Diesel Warrior]

My buddy has an 01 CTD and just straight piped his, he lost a little less than 1 mpg on average. He's 67 and does not have anything resembling a heavy foot.

 

[bentwings]

I'm a couple years back and drive pretty easy and consistant. I'd say maybe...maybe 1/2 mpg gain. sometimes I think it is more but that's offset by the times I have to rattle windows and tromp on it. That kills any perceived gain for sure.

Any loss comes from tromping on it or just stepping on it a little harder more often just to hear it bark. In itself it can't cause a loss. It depends entirely on your foot.

 

[steved]

I saw gains on my 99 auto, my dad's 99 5spd, and my 04.5 6spd trucks going more/less straight.

I never saw a decrease. And all gained at least 1 mpg (my auto gained the most)...

steved

 

[Tex56]

i saw a decrease with my ****\silencer ring delete;-) After the fun period, mpg stayed the same.

 

[Mopar1973Man]

Same here... I lost a bit while I played with the new sounds... But Now my MPG numbers are heading up! I'm heading from 16 MPG to 20 MPG with my list of BOMBS!