Six-Gun Diesel Tuner, with Switch for 2004-2005 Chevy/GMC 2500/3500 6.6L Duramax

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  • Regular price $835.99
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Optimum fuel tuning for awesome power, built-in safety and adjust-on-the-fly power, plus temperature limiting control w/optional Temp Limit Kit.

Tuning that doesn't kill the host vehicle.
Many tuners reduce fuel delivery as exhaust gas temps rise. But they ignore the powertrain! Banks finds the limits of the engine and powertrain, then adds mission-critical ActiveSafety safeguards to Six-Gun so it won’t exceed those limits. Every Banks Tuner comes standard with our exclusive AutoRate® and ActiveSafety® engine and transmission safeguards. Designed to protect your vehicle's drivetrain and keep your truck running strong. As a result, Banks Six-Gun destroys the competition, NOT your truck!

Proof of a higher power.
Stacked for Power® and calibrated for sport applications, Six-Gun is a performance junkie that adds +102 hp/+275 lb-ft. With its CleanTune® Technology and change-on-the-fly power, Six-Gun rockets you from 0-60 mph 21% quicker and 148 feet ahead of stock ... without adding soot!

All gains measured at the rear wheels, with recommended airflow improvements.

For best Six-Gun Tuner performance, Banks always recommends airflow improvements.

  • Horsepower gains up to +102 and +275 lb-ft torque at rear wheels
  • ActiveSafety and AutoRate protects engine/powertrain
  • Destroys the competition, not your vehicle!
  • 6 change-on-the-fly power levels
  • 0-60 mph in 29% less distance!
  • Loaded with Features
  • Value Priced
  • Easy Install

Emissions Compliant: D-161-93

2004 Chevy Silverado 6.6L Duramax LLY rear-wheel Horsepower
2004 Chevy Silverado 6.6L Duramax LLY rear-wheel Torque
Six-Gun, Level 6 Stock Banks Improvement Results
Rear-wheel Horsepower: Best gain

229 hp
@3200 rpm

331 hp
@3200 rpm

+102 hp

45% more
Rear-wheel Torque: Best gain

445 lb-ft
@2000 rpm

720 lb-ft
@2000 rpm
+275 lb-ft 62% more
Rear-wheel Horsepower: Peak-to-peak 246 hp
@3000 rpm
346 hp
@3000 rpm
+100 hp 41% more
Rear-wheel Torque: Peak-to-peak 449 lb-ft
@1800 rpm
720 lb-ft
@2000 rpm
+271 lb-ft 60% more
Acceleration, time: 1/8 mile 11.49 secs 10.66 secs -0.83 secs 7% quicker
Acceleration, speed: 1/8 mile 64.3 mph 73.3 mph +9.0 mph 14% faster
Acceleration, time: 1/4 mile 17.53 secs 16.06 secs -1.47 secs 8% quicker
Acceleration, speed: 1/4 mile 80.6 mph 91.2 mph +10.6 mph 13% faster
Acceleration, time: 0-60 mph 10.18 secs 8.00 secs -2.18 secs 21% quicker
Acceleration, distance: 0-60 mph 511 feet 363 feet -148 feet 29% shorter

Test vehicle: 2004 Chevrolet Silverado 2500, crew cab, long bed, single rear wheel.

Engine: Duramax 6.6L LLY.
Transmission: Allison 5-speed automatic.

Horsepower and torque measured at rear wheels.

Engine differences in 2004 vehicles: Early 2004 vehicles LB7 engine (8th VIN digit - 1) Late 2004 vehicles LLY engine (8th VIN digit - 2)

Upgradeable options include Banks iDash and airflow components to build a complete engineered power system.