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Bully Dog Shift Enhancer Kit - GM Duramax Shift Enhancer
Bully Dog Shift Enhancer Kit

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MSRP: $115.99
Special Sale Price: $92.79
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Product Code: 153001

Description Manufacturer Information

Bully Dog Shift Enhancer Kits

The Bully Dog shift enhancer kits increase line pressure in the transmission, which reduces torque converter and transmission clutch slippage and improves shifting.  The shift enhancer kits are easy to install using basic hand tools.
Bully Dog's Shift enhancers improve shift and line pressure while reducing slipping and lowering heat and friction.  The end result is firmer, quicker shifts which vastly improves the driving experience and longevity of the transmission by lowering transmission temperatures. 
The Allison Shift Enhancer is the simplest, most effective kit available without having to pull the transmission.  It literally gives the clutches more traction in the clutch packs.  It allows for a quicker shift and 50 horsepower worth of additional holding power and capacity for the Allison 1000, 2000, and 2400 5 Speed transmissions.  It will not fit the Allison 6 Speed Transmissions.


  • Transmission holds higher horsepower and torque
  • Increases the life of the transmission
  • Better clutch life
  • Increased horsepower and torque transfer to the wheels


  • Lower transmission temperatures
  • Firmer shifts (Very firm and hard with the "Agressive" Shift Kit)
  • Increased longevity of the transmission
  • Economical
  • Reduced torque converter clutch slippage
  • Extra rear wheel horsepower due to better power transfer
  • Cost savings in transmission repairs