Bully Dog 6 Position 4-Bank Chip #41615

See New Part# BT41105
1999.5-2001 Ford 7.3L Powerstroke F-250/350 Auto Trans.
XDP Part Number:
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The 6 Position 4 Bank Chip (Part #: 41615) is designed to increase horsepower and torque on early 99.5 - 01 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 Dog’s 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.

-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).

-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.

-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:

Customer Reviews - Include your order number for a chance to win a $100 GiftCard

(42 Ratings, 5 Reviews) Average Rating:
justin (tarr) 11/12/2011 9:24 PM
i love this chip. the only down side is the it screws up my ecu. i was wondering if anyone knew were i could send it in and get it flashed and the price. but other than that it makes plenty of power and is preety economical
Gage (san antonio) 3/31/2010 12:10 AM
this chip is really good if you want alot of power its easy to install and i would buy it agian if i could
Great Product
Ronnie Brannon (Oklahoma) 3/27/2009 5:52 PM
I recently installed in my 01 F-350. Install was a breeze the results are great. I truck cattle all over the state and this has greatly improved the pulling power, improved fuel economy and transmission shifts are better than before. Would recommend this product to anyone who is looking to increase the performanc in their truck
Sean (Washington) 3/14/2009 5:31 PM
Install was simple - good instructions. Best bang for the buck! It is like a 2 for 1, I got great power gain with a transmission improvement - THANKS!
Anonymous (Unknown) 4/20/2008 1:40 PM
Improved performance after installing chip. Be sure to take the time to remove all silicon from ECU as described in instructions to ensure that new chip operates properly. I jumped from 11.0 MPG to 13.5 MPG towing 9,000 lb. fifth wheel under similar conditions.