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® and AutoRate®safeguards to Six-Gun so it won’t exceed those limits. Has 6 change-on-the-fly power levels. Is Stacked for Power to tune timing and fuel pressure. As a result, Six-Gun thrashes challengers, not your truck!
Proof of a higher power.
Calibrated for sport applications, Six-Gun is a performance junkie that adds +127 hp/+345 lb-ft. With its comprehensive CleanTune® Technology and change-on-the-fly power, Six-Gun rockets you from 0-60 mph 28% quicker and in 31% less distance than stock ... without adding black smoke!
Engine differences in 2004 vehicles: Early 2004 vehicles - LB7 engine (8th VIN digit - 1). Late 2004 vehicles - LLY engine (8th VIN digit - 2).
- Gain up to +127 hp/+345lb-ft at rear wheels
- 6 change-on-the-fly power levels
- 0-60 mph in 1/3 less distance!
- ActiveSafety protects engine/powertrain
- Destroys the competition, not your vehicle!
- Easy Install
- Loaded with Features
- Value Priced
- Temperature limiting control w/opt Temp Limit Kit 63077
Emissions Compliant: D-161-93
Test Results
Chevy/GMC Truck Power
Turbo-diesel: 6.6L Duramax LB7, '01-04
Test vehicle: 2001 Chevy 3500HD, Extended Cab, Long Bed
Engine: 6.6L Duramax LB7
Transmission: Allison Series 1000 5-speed automatic


Six-Gun, Level 6 |
Stock |
Banks |
Improvement |
Results |
Horsepower:Best gain |
163 hp @2000 rpm |
290 hp @2000 rpm |
+127 hp |
78% more |
Torque:Best gain |
458 lb-ft @1800 rpm |
803 lb-ft @1800 rpm |
+345 lb-ft |
75% more |
Horsepower:Peak-to-peak |
252 hp @3000 rpm |
322 hp @3000 rpm |
+70 hp |
28% more |
Torque:Peak-to-peak |
458 lb-ft @1800 rpm |
803 lb-ft @1800 rpm |
+345 lb-ft |
75% more |
Horsepower:Upshift point (automatics) |
249 hp @3200 rpm |
322 hp @3200 rpm |
+73 hp |
29% more |
Torque:Downshift point (automatics) |
459 lb-ft @2300 rpm |
712 lb-ft @2300 rpm |
+253 lb-ft |
55% more |
1/8 mile: Elapsed time |
11.81 sec. |
10.46 sec. |
-1.35 sec. |
11% quicker |
1/8 mile: Trap speed |
65.40 mph |
74.86 mph |
9.46 mph |
14% faster |
1/4 mile: Elapsed time |
17.89 sec. |
16.00 sec. |
-1.89 sec. |
11% quicker |
1/4 mile: Trap speed |
80.48 mph |
87.57 mph |
7.09 mph |
9% faster |
1/4 mile: Truck lengths over stock (Length = 20') |
— |
— |
11.00 TL |
— |
0-60 mph: Elapsed time |
10.18 sec. |
7.36 sec. |
-2.82 sec. |
28% quicker |
0-60 mph: Distance |
509.1 ft. |
349.1 ft. |
-159.9 ft. |
31% shorter |
All gains measured at the rear wheels, with recommended airflow improvements.
Upgradeable options include Banks iDash DataMonster and airflow components to build a complete engineered power system.
For best Six-Gun Tuner performance, Banks always recommends airflow improvements.
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