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USD 382.49
Part #: BT41613

Bully Dog 6 Position 4-Bank Chip #41613

1999 (early) Ford 7.3L Powerstroke F-250/350 Auto Trans.
Part #: BT41613
★★★★★ ★★★★★ 3 Reviews
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The 6 Position 4 Bank Chip (Part #: 41613) is designed to increase horsepower and torque on early 99 7.3L Ford Power Strokes with automatic transmissions. The six positions included are:
High Idle
+50 hp
+75 hp
+100 hp

Utilizing state-of-the-art programs, Bully Dogs 6 Position 4 Bank Chips run the lowest exhaust gas temperatures in the industry, typically running 50 to 100 degrees cooler than competitor products.

For installation, simply plug the chip into the Engine Control Unit (ECU). The 6 Position 4 Bank Chip is adjustable on-the-fly.

-Tow Settings
Recommended never to tow in 100 HP setting
Towing Weights for 75 HP setting: anything lower than 7500 lbs.
Towing Weights for 50 HP setting: anything over 7500 lbs.

-Increase Performance
These performance modules are designed to increase horsepower while keeping EGTs under control.

-Tranny Smart
For quicker, firmer shifts, the 4 Bank chips will enhance the Transmission line pressures on all trucks with automatic transmissions. This is ideal for all towing situations and enhancing transmission life.

-New 6 Position 4 Bank Chip
The new 6 position 4 Bank Chip gives additional options such as: high idle with increased RPM for cold weather starts. Valet setting which returns the truck to stock and adds a 70 mph speed governer (99-03 7.3L only).

-Adjustable on the Fly
All 4 Bank Chips are adjustable on the fly when accompanied with a switch. Save time with the ease of operation by adjusting on the fly.

-Removes Speed Limiter

  • Will solve lack of power situations
  • Will help with sluggish shifts
  • With good driving habits, increases in MPG
  • Improved Drivability

Additional Information

Install Sheet


  • MFG. Number 41613
  • Manufacturer Name Bully Dog Technologies
  • Shipping Weight 2.00 lb.
  • Prop 65 WARNING: Cancer & Reproductive Harm -


★★★★★ ★★★★★
5.0/5 Stars out of 3 Reviews
6 Position 4 Bank Chip
Anonymous (Unknown) | May 21st, 2008
I have had my chip for over a year and it has paid for it's self many times over in fuel costs. 28 MPG on the highway in a F-350 duely....unheard of!!!!! Great response and towing power is unreal
polosdog (Unknown) | January 25th, 2007
the bulldog chip added major power to my truck shifts nice and has excellent responce time especially off the get go.
Best addition to the truck
jameslogan (california) | January 4th, 2012
As with all buyers I did a lot of studying before making a decision on what chip to buy for the truck. I chose this Bullydog for my early 99 at 170,000 and it made everything so much better. Running stronger than it ever has with 240,000 miles now.

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Questions and Answers

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Most Popular Questions

Can I benefit from this product? What other options? I have an early 99 7.3L with 266k miles.
View Staff Answer 

You would absolutely see an increase in performance, fuel economy, and overall drivability. The 6 position 4 Bank Chip gives additional options such as: high idle with increased RPM for cold weather starts. Valet setting which returns the truck to stock and adds a 70 mph speed governor. The unit also comes with towing settings and performance HP settings.