Diesel Tuners
I received an email and video from Trailer Life about Bully Dog GT tuners for diesel engines. It all sounds good but I have been warned that the warranty would be voided if I use a tuner. Now I wond...
Forum Discussion
Good to hear from some real world experiance users,my PPE tuner on a 2003 Duramax towed my 5er and had 250k without breaking anything and yes got better mileage. The 2001 to 2004.5 LB7 version has no EGR or cat except in California. The bullydog and H&S tuners are the smoke tuners the hot rodders all love. ATP tuner, Rob Coddens has an emmissions compliant tune for all Duramax, Duramaxtuner is another. EFI live is the best way to tune,as it is custom designed to your individual truck. There is a lot of******info. out there, do your research on what you have,most tuners specialize on one engine.Phone them and ask questions,ask owners who have the same setup. Kenworth trucks did indeed find in a study that the biggest changes in mpg were driver related. If you set the cruise at 75 mph, accelerate like a car and late brake, you will get crappy mpg. There are tuners for big truck engines as well, Pittsburgh power has hot rodded diesels for years!
