cat delete
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Senior User
Joined: Jul 2009
Posts: 218
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From: Ashland, Mississippi
cat delete
2005 F250 6.0L,
So I have a neighbor with the same truck as mine and he did the cat delete and claims he is getting 3-4 mpg more on the highway. I seriously doubt he is getting that much better but I would be happy with a 1-2 mpg improvement as the cat delete is a pretty cheap job. Also wouldnt mind the truck sounding a little tougher. Not looking for loud and rattle or popping crap just a little deeper sound. But my main question is will I see any improvement on mileage? Any negatives to doing it? Other then inspections, which is a non issue here.
Thanks,
Richard
So I have a neighbor with the same truck as mine and he did the cat delete and claims he is getting 3-4 mpg more on the highway. I seriously doubt he is getting that much better but I would be happy with a 1-2 mpg improvement as the cat delete is a pretty cheap job. Also wouldnt mind the truck sounding a little tougher. Not looking for loud and rattle or popping crap just a little deeper sound. But my main question is will I see any improvement on mileage? Any negatives to doing it? Other then inspections, which is a non issue here.
Thanks,
Richard
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
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From: Central Oregon
I see a little gain on MPG. (not 3-4 mpg) It wasn't in the plans for deleting the cat though. Just wanted the air to flow a little better.
As for sound? Really didn't notice that much of a change.
As for sound? Really didn't notice that much of a change.
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Joined: Jan 2009
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I straight piped mine, from the turbo back, a little over a year ago. It has a whistle, which my wife hates, while idling and a rumble when I get on the skinny pedal. No improvement in mpg but I almost never go through a whole tank of diesel without pulling a trailer so I am probably not the best example.
I do love having a load of round bales on a 30' gooseneck and passing someone. It rumbles loud enough at that point to get some attention.
I do love having a load of round bales on a 30' gooseneck and passing someone. It rumbles loud enough at that point to get some attention.
Posting Guru
Joined: Sep 2009
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You could see either an improvement or a decrease in mileage, it depends on your type of driving.
Cat/muf delete + highway = +MPG
Cat/muf delete + city = -MPG
Either way it's not going to be much -/+ and it relative to how heavy your foot is. You'll affect your MPG more by keeping your foot light.
Cat/muf delete + highway = +MPG
Cat/muf delete + city = -MPG
Either way it's not going to be much -/+ and it relative to how heavy your foot is. You'll affect your MPG more by keeping your foot light.
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From: Kerrville, Tx
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Senior User
Joined: Jul 2009
Posts: 218
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From: Ashland, Mississippi
Ok, thanks for the answers. Thinking I will delete cat and muffler. Is a 4" turbo back what is pretty much standard?
Thanks
Thanks
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From: Kerrville, Tx
yea. you can get the silverline aluminized turbo back exhaust system from xdp.com for 299 with free shipping. personally there is no reason for the stainless steel IMO because its gonna get dirty anyways and its the same thing just more expensive
FTE Legend
Joined: Jul 2005
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From: Millersville, MD
Removal of either or both is gonna result in LESS MPG. You all are gonna press down more with your right foot just to LISTEN to it!!!!
BTW, it's nice to have power windows so you can drop that light side rear window!!!! LOL
BTW, it's nice to have power windows so you can drop that light side rear window!!!! LOL
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