Attention: TDR Forum Junkies 
Does anyone have any issue running Performance tuners on the 6. 7L Cummins?
1. Has your fuel mileage improved? If yes by how much?
2. What warranty issue have you had or engine problems such as Turbo failures and head bolt issue?
3. What turners do you think are the best? Such as Banks, Edge Juice,Bully Dog and Quadzilla?
My son feels that the Smarty is the best one but when is this tuner going to reach the market if ever.
I am looking for ways to improve mileage not necessary performance the 6. 7L has enough horsepower now. I have read were most tuners state that they will improve mileage but that's the "ADD men" talking. Real word data is best.
Thanks in advance.
1. Has your fuel mileage improved? If yes by how much?
2. What warranty issue have you had or engine problems such as Turbo failures and head bolt issue?
3. What turners do you think are the best? Such as Banks, Edge Juice,Bully Dog and Quadzilla?
My son feels that the Smarty is the best one but when is this tuner going to reach the market if ever.
I am looking for ways to improve mileage not necessary performance the 6. 7L has enough horsepower now. I have read were most tuners state that they will improve mileage but that's the "ADD men" talking. Real word data is best.
Thanks in advance.
