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Quick Ship SKU #: BUL-40420 Bully Dog GT Diesel Tuner & Monitor Cummins/Duramax/PowerStroke

Starting At

$422.10 ~~$469.00~~

Bully Dog 10% Savings (Ends 12/31/2024): $46.90

Fast and Free Shipping On Orders Over $199

No Salesmen, Just Enthusiasts 888.993.4373

Description
Videos
Blog Posts

As enthusiasts, we're constantly looking for a proper solution to the age old question, "How do I get more power out of this thing?" It seems like every time we finally get settled with the right rig to tow that trailer, or boat, or haul the right tools, everything gets heavier, and the truck slows down. Factory tuning standards don't take into account the changes in life or the growth of the owner. The easiest way to find a balance for easy noncomplicated power production comes down to the brains of the operation, your truck PCM (Powertrain control module).

The GT Diesel Tuner & Monitor from Bully Dog is a vehicle engine tuner, monitor, gauge, and diagnostic device in a single easy to use unit. Through clever computer science, the GT provides more horsepower and torque to suit the needs and desires you have for your truck. That may be something as simple as needing a nice set of gauges in a single location to keep informed on your truck's behavior, or if you need enough juice to pull your buddy's trailer that weighs a bit more than you originally thought your truck could handle. And if you're not looking to play Smokey and the Bandit against the government on emissions, Bully Dog tuning devices do not modify or delete vehicle emissions, so you can enjoy a performance lifestyle while staying an environmentally conscious consumer. Tunes that are preloaded have gone through hours of testing to ensure the safety of drivers and the environment.

With preloaded tunes, customizable gauges, and a wide variety of hauling features, you’ll have plenty of power to take on tough jobs or improve your fuel economy for long highway hauls. It's as simple as pressing buttons; there is no secret sauce or magic tricks you need to learn. The Bully Dog is designed to be intuitive and easy to operate for an out-of-the-box performance increase.

OVERVIEW:

(capabilities vary per vehicle)

Tuning: Select between multiple street-tested, dyno-proven tunes for towing or performance.
Monitoring: Track critical performance data in real-time on easy to navigate virtual gauges, such as engine load, rail pressure, pyrometer, boost, injection control, transmission temperature, fuel economy, and more.
Diagnostics: Read and clear Diagnostic Trouble Codes (DTC's) with ease.
Adjustments: 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
Performance Test: Designed to test a vehicle's performance on the drag strip. Couple this with the free PC analysis software and you can also determine your horsepower.

Jump to Ford Capabilities

Jump to GM capabilities

Jump to Dodge/Ram capabilities

MAX POWER GAINS RECORDED SO FAR:

Year	Make	Model	Engine	Tune	HP Gain	TQ Gain
Year	Make	Model	Engine	Tune	HP Gain	TQ Gain
2012	Ford	F-Series Super Duty	6.7L DI_PS	Performance	145.75	226.78
2016	Ford	F-Series Super Duty	6.7L DI_PS	Performance	103.43	221.67
2013	Dodge	Ram 2500	6.7L Cummins	Performance	47	130
2014	Dodge	Ram 2500	6.7L Cummins	Performance	47	130
2015	Dodge	Ram 2500	6.7L Cummins	Performance	47	130
2016	Dodge	Ram 2500	6.7L Cummins	Performance	47	130
2017	Dodge	Ram 2500	6.7L Cummins	Extreme	90.97	167.64
2017	Dodge	Ram 2500	6.7L Cummins	Performance	68.17	123.47
2017	Dodge	Ram 2500	6.7L Cummins	Tow	52.96	90.73
2018	Dodge	Ram 2500	6.7L Cummins	Extreme	47	130
2018	Dodge	Ram 2500	6.7L Cummins	Performance	47	130
2018	Dodge	Ram 2500	6.7L Cummins	Tow	47	130
2019	Dodge	Ram 2500	6.7L Cummins	Performance	49	77
2019	Dodge	Ram 2500	6.7L Cummins	Street	49	77
2019	Dodge	Ram 2500	6.7L Cummins	Tow	49	77
2020	Dodge	Ram 2500	6.7L Cummins	Performance	58	66
2020	Dodge	Ram 2500	6.7L Cummins	Street	58	66
2020	Dodge	Ram 2500	6.7L Cummins	Tow	58	66
2021	Dodge	Ram 2500	6.7L Cummins	Performance	58	66
2021	Dodge	Ram 2500	6.7L Cummins	Street	58	66
2021	Dodge	Ram 2500	6.7L Cummins	Tow	58	66
2013	Dodge	Ram 3500	6.7L Cummins	Performance	47	130
2014	Dodge	Ram 3500	6.7L Cummins	Performance	47	130
2015	Dodge	Ram 3500	6.7L Cummins	Performance	47	130
2016	Dodge	Ram 3500	6.7L Cummins	Performance	47	130
2017	Dodge	Ram 3500	6.7L Cummins	Extreme	47	130
2017	Dodge	Ram 3500	6.7L Cummins	Performance	47	130
2017	Dodge	Ram 3500	6.7L Cummins	Tow	47	130
2018	Dodge	Ram 3500	6.7L Cummins	Extreme	47	130
2018	Dodge	Ram 3500	6.7L Cummins	Performance	47	130
2018	Dodge	Ram 3500	6.7L Cummins	Tow	47	130
2019	Dodge	Ram 3500	6.7L Cummins	Performance	49	77
2019	Dodge	Ram 3500	6.7L Cummins	Street	49	77
2019	Dodge	Ram 3500	6.7L Cummins	Tow	49	77
2020	Dodge	Ram 3500	6.7L Cummins	Performance	58	66
2020	Dodge	Ram 3500	6.7L Cummins	Street	58	66
2020	Dodge	Ram 3500	6.7L Cummins	Tow	58	66
2021	Dodge	Ram 3500	6.7L Cummins	Performance	58	66
2021	Dodge	Ram 3500	6.7L Cummins	Street	58	66
2021	Dodge	Ram 3500	6.7L Cummins	Tow	58	66
2013	Dodge	Ram 3500 Chassis Cab	6.7L Cummins	Performance	47	130
2014	Dodge	Ram 3500 Chassis Cab	6.7L Cummins	Performance	47	130
2015	Dodge	Ram 3500 Chassis Cab	6.7L Cummins	Performance	47	130
2016	Dodge	Ram 3500 Chassis Cab	6.7L Cummins	Performance	47	130
2001	GMC	Sierra	6.6L Duramax	Extreme	71.4	150.2
2001	GMC	Sierra	6.6L Duramax	Performance	62.96	125.2
2001	GMC	Sierra	6.6L Duramax	Tow	47.66	90.58
2005	GMC	Sierra	6.6L Duramax	Extreme	243.41	436.36
2005	GMC	Sierra	6.6L Duramax	Performance	208.8	375.21
2005	GMC	Sierra	6.6L Duramax	Tow	162.8	292.73
2001	Chevrolet	Silverado	6.6L Duramax	Extreme	71.4	150.2
2001	Chevrolet	Silverado	6.6L Duramax	Performance	62.96	125.2
2001	Chevrolet	Silverado	6.6L Duramax	Tow	47.66	90.58
2005	Chevrolet	Silverado	6.6L Duramax	Extreme	155.6	290.8
2005	Chevrolet	Silverado	6.6L Duramax	Performance	119	221.92
2005	Chevrolet	Silverado	6.6L Duramax	Tow	74.6	160

FORD CAPABILITIES: «scroll/swipe»

40420

DOWNLOADING FUNCTIONS

DEFUELING CAPABILITIES

TUNING

MONITORING CAPABILITIES

Special Features

Make

Model

START YEAR

END YEAR

Engine

Part #

Speed Limiter

Tire Size�

Transmission Tuning

PYRO 1

PYRO 2

Coolant Temperature

Boost

Transmission Temperature

Oil Temperature

DTCs

Performance Test

Shift on fly

STOCK OPTION

CUSTOM TUNING AVAILABLE

FUEL ECONOMY

Pyros

Boost

SPEED

RPM

Coolant Temperature

Fuel Rail Pressure

Manifold Absolute Pressure

Timing

Injector Pulse Width

Throttle Position

Intake Temperature

Mass Air Flow

Barometer

Battery Voltage

Oil Temperature

Injection Control Pressure

Transimission Temperature

Load

Fuel Flow

Moblie Regeneration

Stationary Regeneration

FORD

SUPER DUTY

1999

2003

7.3L

40420

Y

N

N

Y(pafasi)

Y(pafasi)

N

Y

Y

Y

Y

Y

Y

Y

Y

Y (pafasi)

Y

Y

Y

N

N

N

N

N

Y

Y

N

Y

Y

Y

Y

Y

N

Y

N

N

FORD

EXCURSION

2000

2003

7.3L

40420

Y

N

N

Y(pafasi)

Y(pafasi)

N

Y

Y

Y

Y

Y

Y

Y

Y

Y (pafasi)

Y

Y

Y

N

N

N

N

N

Y

Y

N

Y

Y

Y

Y

Y

N

Y

N

N

FORD

SUPER DUTY

2003

2007

6.0L

40420

Y

05 to 07

N

Y(pafasi)

Y(pafasi)

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y (pafasi)

Y

Y

Y

Y

N

N

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

N

N

FORD

EXCURSION

2003

2004

6.0L

40420

Y

Y

N

Y(pafasi)

Y(pafasi)

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y (pafasi)

Y

Y

Y

Y

N

N

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

N

N

FORD

SUPER DUTY

2008

2010

6.4L

40420

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

N

Y

FORD

SUPER DUTY CHASSIS CAB

2008

2010

6.4L

40420

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

N

Y

FORD

SUPER DUTY

2011

2012

6.7L

40420

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

N

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

FORD

SUPER DUTY

2013

2016

6.7L

40420

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y no 16

Y

Y

Y

Y

Y

Y

Y

Y

N

N

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

FORD

SUPER DUTY

2017

2019

6.7L

40420

No shift on the fly

FORD NOTES:

2011+ (GT Tuner #40420) no shift on the fly
Speed limiter: 2011+ stock or removed. 2008-2010 55-200mph Increments 1mph. 2003-2007 stock or removed. 1999-2003 50-135mph increments of 5mph
Tire size: 2003-2010 (6.0L)25"-45" Increments 0.25". 2011+ 31.4-34.1 Increments 0.1
Transmission:Stock, Firm and Aggressive. (firmness)
No Cab and Chassis support 2011+

GM CAPABILITIES:«scroll/swipe»

40420

Down Loading Functions

Special Function

DEFUELING CAPABILITIES

TUNING

MONITORING CAPABILITIES

Make

Model

START YEAR

END YEAR

Engine

Part #

Speed Limiter

Tire Size�

Transmission Adaptive Learning

Mobile Regeneration

PYRO 1

PYRO 2

Coolant Temperature

Boost

Transmission Temperature

DTCs

Performance TEST

Shift on Fly

STOCK OPTIONS

CUSTOM TUNING AVAILABLE

FUEL ECONOMY

Pyros

Boost

SPEED

RPM

Coolant Temperature

Fuel Rail Pressure/ICP

Throttle Position

Intake Temperature

Timing

Barometer

Battery Voltage

Transimission Temperature

Load

DPF Set Mass

Fuel Flow

GMC/CHEVRO

Sierra/Silver

2001

2005

6.6L

40420

Y

02 to 05

N

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

N

Y

Y

N

N

Y

GMC/CHEVRO

Sierra/Silver

2006

2007

6.6L

40420

Y

Y

N

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

N

Y

N

N

Y

GMC/CHEVRO

Topkick/Kodi

2006

2007

6.6L

40420

Y

Y

N

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

N

Y

N

N

Y

GMC/CHEVRO

Savana/Expr

2006

2007

6.6L

40420

Y

Y

N

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

N

Y

N

N

Y

GMC/CHEVRO

Sierra/Silver

2007.5

2010

6.6L

40420

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

N

Y

Y

N

Y

GMC/CHEVRO

Topkick/Kodi

2007.5

2009

6.6L

40420

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

N

Y

Y

N

Y

GMC/CHEVRO

Savana/Expr

2007.5

2010

6.6L

40420

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

N

Y

Y

N

Y

GMC/CHEVRO

Sierra/Silver

2011

2016

6.6L

40420

Y

Y

Y no 16

Y

Y (WARNING)

Y (WARNING)

Y (WARNING)

Y (WARNING)

Y (WARNING)

Y

Y

N

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

GMC/CHEVRO

Chassis-Cab (

2011

2016

6.6L

40420

Y

Y

Y no 16

Y

Y (WARNING)

Y (WARNING)

Y (WARNING)

Y (WARNING)

Y (WARNING)

Y

Y

N

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

GMC/CHEVRO

Savana/Expr

2011

2016

6.6L

40420

Y

Y

Y no 16

Y

Y (WARNING)

Y (WARNING)

Y (WARNING)

Y (WARNING)

Y (WARNING)

Y

Y

N

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

GM NOTES:

Speedlimiter: 2006-2010 50-removed increments 5mph. Adjustment up to 95. 2001-2005 50-130 increments of 5mph. 2011+ 50-95 increments of 5mph.
Tire Size: 11+ 25"-45" increments 0.25". 01-10 25"-60" increments 0.25"

DODGE/RAM CAPABILITIES:«scroll/swipe»

40420

DOWNLOADING FUNCTIONS

DEFUELING CAPABILITIES

TUNING

MONITORING CAPABILITIES

SPECIAL FEATURES

Make

Model

START YEAR

END YEAR

Engine

Part #

Speed Limiter

Tire Size�

Low End Power

PYRO 1

PYRO 2

Coolant Temperature

Boost

Transmission Temperature

DTCs

Performance TEST

Shift on Fly

STOCK OPTION

CUSTOM TUNING AVAILABLE

FUEL ECONOMY

Pyros

Boost

SPEED

RPM

Coolant Temperature

Fuel Rail Pressure/ICP

Throttle Position

Intake Temperature

Mass Air Flow

Barometer

Battery

Transimission Temperature

Load

Fuel Flow

Head Light Delay

Idle Adjust

Shut Down Timer

PTO

Horn Chirp on Lock

Over Drive Lockout

Optical Flash on Lock

Auto Door Lock

Unlock Driver Door

Seat Belt Chime

Accessory Delay

Fog Light/High Beam

Daytime Running Light

TPMS

Mobile� Regeneration

DODGE

CUMMINS

2003

2005

5.9L

40420

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

N

N

Y

Y

Y

Y

N

N

Y

2005

Y

Y

Y

N

N

N

N

N

N

DODGE

CUMMINS

2006

2007

5.9L

40420

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

N

N

Y

N

Y

Y

Y

Y

Y

Y

Y

N

N

DODGE

CUMMINS

2007.5

2009

6.7L

40420

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

N

Y

N

Y

Y

Y

N

N

Y

N

Y

Y

Y

Y

Y

Y

Y

N

Y

DODGE

CUMMINS Ch

2008

2010

6.7L

40420

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

N

Y

N

Y

Y

Y

N

N

Y

N

Y

Y

Y

Y

Y

Y

Y

N

2008-2009

DODGE

CUMMINS

2010

2012

6.7L

40420

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

N

Y

N

N

Y

Y

Y

Y

Y

N

DODGE�

CUMMINS Ch

2011

2012

6.7L

40420

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

N

Y

N

N

Y

Y

Y

Y

Y

N

DODGE

CUMMINS

2013

2017

6.7L

40420

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

N

N

Y

N

Y

N

Y

N

N

N

N

N

N

2013

N

DODGE

CUMMINS Ch

2013

2017

6.7L

40420

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

N

N

Y

N

Y

N

Y

N

N

N

N

N

N

2013

N

DODGE

CUMMINS

2018

2021

6.7L

40420

Requires bypass cable

DODGE�

CUMMINS Ch

2018

2021

6.7L

40420

Requires bypass cable

DODGE/RAM NOTES:

Tire Size: 25"-45" Increments 0.25"
Speed limiter: 50-170mph 1mph

Install Instructions

no shipping

No Shipping To CA

Specifications

SkuBUL-40420
ManufacturerBully Dog
MPN40420

IMPORTANT NOTES:

This product will not allow for the removal or disablement of factory emissions equipment, such as EGR (Exhaust Gas Recirculation) or DPF (Diesel Particulate Filter).
Product is not returnable if the packaging has been opened and/or product has been installed.
This product will support Ram truck applications with the Aisin transmission option.
2018-2022 Cummins will require optional Unlock Cable
No 2013 Ford Cab and Chassis support

2018-2022 CUMMINS:

Previous to the release of the Unlock Cable, you were required to remove your PCM from the truck and send it in for modification in order to allow you to tune your Cummins, obviously leading to down time for your truck. This simple cable allows you to use the Bully Dog GT to tune your Cummins, and any other 2018-2022 Cummins that also has a GT Tuner. This is a one time use cable, thus once you've installed the tuner using the cable, your truck is now permanently unlocked, even if you return it to stock, so you can tune your buddy's truck or anyone else's (as long as they have their own GT Tuner).

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