Open that puppy up. aFe Cold air intake, MBRP exhaust 5" and a good tuner since your wanting to gain more MPG's then I recommend you go with the Duramax Duramileage EZTuner. This company actually guarantees you'll see a change. They stand by their products 100% and will put their money were their mouth is. Or like one of the guys said above, Efi Live is another great option, if you got the $$$ for tunes.
Originally Posted by 2004LB7
the problem is that this site has a lot more Ford and Dodge guys then Duramax guys. there are only a few of us helping out the Duramax guys so some of them get missed.
as for power, economy or drivability nothing beats a custom EFI Live tune.
Yeah, well I'm glad I am apart of this site now. I deal with them all. Every diesel has their issues. I'm a 19 year old future student of NADC. I've been studying diesels since I was 14 years old. I know them like the back of my hand. I always sit here take notes, and pound everything I need to know about these new engines. Because I am soon opening my diesel shop in Crossville, Tn. So I gotta haha.