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Bully Dog Diesel Performance Tuner with Gauges & Customizable Tuning

(3 reviews)
Part # 40420
1 yr replacement if defective
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Product Information

Product Details
Part No. 40420
Warranty Details (1 YR REPLACEMENT IF DEFECTIVE)
The GT Gas and Diesel tuners unlock more horsepower and torque to meet the unique demands you put on your vehicle. With preloaded tuning, customizable gauges to track performance, and a wide variety of hauling and off-roading features, you'll have plenty of power to take on tough jobs or improved fuel economy for long highway hauls.

Product Features:
  • Track critical performance data in real-time on easy to navigate virtual gauges
  • Select between multiple street-tested, dyno-proven tunes for economy, towing or performance.
  • Reads and clears DTC (Diagnostic Trouble Codes) with ease
  • Manage tire size, gear ratio, speed limiter, speedometer calibrations, shift points, and more. Offering shift-on-the-fly tuning and better control of defueling and regeneration.
  • Product might not be available in all states due to local laws.
Specifications
Engine or Transmission Programmer:
Engine

Engine Size Coverage:
7.3L, 6.0L, 6.4l, 5.9L, 6.7L, 6.6L

Fuel Type:
Diesel
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2 out of 5
3 Customer Reviews
33% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
0
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
2
Pros
3
Easy To Install
2
Increases Power
1
Adds unbeleiveable horse
1
Lightweight
1
No decrease in mileage
Cons
1
No Improvement In Performance
1
Decreases Gas Mileage
1
Lost mpg
1
No improvement in mileage
Reviewed by 3 Customers
Junk
It was expensive and not to mention it didn't do anything for mpg, it's the biggest piece of junk I can't even give it away
Bottom Line No, I would not recommend to a friend
great power poor fuel economy
Verified Buyer -
this thing cost a lot of money and does not increase mpgs
Bottom Line No, I would not recommend to a friend
Preformance is good easy to set up.
2003 Dodge, 5.9 cummins, quad cab, long bed, 4X4, automatic, 4 inch exhaust. I drive 100 mile a day for work, & tow a 27 foot 5th wheel camper for family vacations, performance is good, I use the toe/haul mode all the time. Did not change my MPG at all, still getting 19MPG running unloaded. Even when using the driving coach I can’t get any better mileage. The best score I get on the coach is a C+. I was really hoping for better mileage. At least it gives me more power with out decreasing the mileage, and you can watch your engines vitals. I would recommend getting the optional EGT prob.
Bottom Line Yes, I would recommend to a friend
Displaying Reviews 1 - 5Back to Top
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