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Jul 9, 2010 | 02:11 PM

#16

Brown Falcon

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Joined: Jul 2008

Posts: 11,231

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From: Thomasville, GA

intake, exhaust, custom tune chip like a PHP, DP Tuner, or TW

Those mods should help quite a bit. Especially replace the intake and the stock downpipe if you still have it.

Jul 9, 2010 | 04:45 PM

#17

bearhugger

Thread Starter

Senior User

Joined: Feb 2009

Posts: 387

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From: Shepherd Tx

Yes i still have the stock air filter and down pipe also the cat,will probable replace the filter and cat.
Thanks

Jul 9, 2010 | 06:29 PM

#18

Brown Falcon

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Joined: Jul 2008

Posts: 11,231

Likes: 130

From: Thomasville, GA

Quote:

Originally Posted by bearhugger

Yes i still have the stock air filter and down pipe also the cat,will probable replace the filter and cat.
Thanks

The 6637 filter mod is very popular here. Also, gutting the cat or deleting it all together.

Probably the most restrictive part of the exhaust is the stock downpipe. It's like a flat pancake instead of a round pipe. A 3" round downpipe can be bought for under $100 and is relatively easy to install.

I have pictures from my downpipe install that I could send if you need them. Just send a PM if interested.

Jul 10, 2010 | 10:08 AM

#19

oldbird1965

Fleet Owner

Joined: Aug 2004

Posts: 20,419

Likes: 197

From: AZ

I have a 2wd (I would never pull in 4by4 even if I had 4by4) and pull what you see in my signature and if I get 10mpg I'm happy. I run the crap out of it also because I want to get there and to H*** with mpg.

Jul 10, 2010 | 11:14 AM

#20

thebig350

Tuned

Joined: Feb 2010

Posts: 339

Likes: 0

From: Texas

Quote:

Originally Posted by oldbird1965

I have a 2wd (I would never pull in 4by4 even if I had 4by4) and pull what you see in my signature and if I get 10mpg I'm happy. I run the crap out of it also because I want to get there and to H*** with mpg.

Glenn, I hereby declare you the winner of this thread.

Jul 10, 2010 | 12:11 PM

#21

427 fordman

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Joined: Feb 2009

Posts: 10,410

Likes: 77

From: Plankinton, SD

Quote:

Originally Posted by oldbird1965

hahaha Good one glenn, I hear ya

Jul 10, 2010 | 12:25 PM

#22

drivembig

Senior User

Joined: Sep 2006

Posts: 247

Likes: 0

From: NC

I was fighting the fuel mileage problem when I first got my truck. I realized that the biggest difference that I saw was the kind of oil that was being ran in the truck. I don't know what the previous owner was using, but it had to be bad. I changed it to Mobil Delvac (and that isn't the best by far) and my mileage increased about 5 miles per gallon.

I know I have heard some of these guys using synthetic and helping quiet a bit as well.

Jul 10, 2010 | 02:55 PM

#23

B Big

Senior User

Joined: Feb 2009

Posts: 148

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From: Western NC

My 4 door dually 95' got 17.86MPG (9400 miles MPG test) with crappy oil & fuel leak(s) in the valley!!

I have switched to 15w-40 Amsoil. I will post the MPG results soon. My engine sounds & runs sooo much better with the Amsoil !!!!!

I am still running down the fuel leaks & plan to switch out the down pipe & do the Riff Raff intake.

I am REAL happy with this truck's MPG, 20% better than my 03' Navigator! & thats BEFORE the switch to synthetic oil.