

2" gauge-mount all-in-one tuner, control panel, EGT limiter and performance display; adds up to +62 hp, +163 lb-ft (rear wheel); stacks; 6 power levels; built-in safety.
What It Is:
Six-Gun is a fully engineered 2" gauge-mount diesel tuner, control panel, EGT limiter (with optional thermocouple) and performance display, all in one compact, easy-to-install device.
What It Does:
Six-Gun adds up to +62 hp and +163 lb-ft (rear wheel) with six levels of adjust-on-the-fly power; stacks with aftermarket chips or programmers (including Banks Big Hoss® and OttoMind®); and has built-in safeguards.
Even Better:
Six-Gun displays real-time EGT, boost, percent of fuel increase and self-diagnostics; the display options are user-selectable.
When you group the Six-Gun Diesel Tuner together
with other components you save even more money.
Check out the Banks Power Combos »

Here's the TEST REPORT
for your vehicle!
Get a hard copy in the mail »
View it right now online »
Test vehicle: 2002 Ford Super-cab, Short-bed • F-250 Pickup • 2wd
Engine: 7.3L Power Stroke • Transmission: 4R100 automatic
Horsepower and torque measured at rear wheels.

Note: Banks Horsepower and Torque tests performed with recommended airflow improvements
| Six-Gun, Level 6 | Stock | Banks | Improvement | Results |
|---|---|---|---|---|
| Horsepower, Best Gain | 122.0 hp @2000 rpm |
184.3 hp @2000 rpm |
62.3 hp @2000 rpm |
51% more |
| Torque, Best Gain | 320.4 lb-ft @ 2000 rpm |
484.0 lb-ft @ 2000 rpm |
163.6 lb-ft @2000 rpm |
51% more |
| Horsepower, Peak-to-peak |
184.1 hp @2800 rpm |
225.0 hp @2600 rpm |
40.9 hp | 22% more |
| Torque, Peak-to-peak |
366.2 lb-ft @2600 rpm |
487.0 lb-ft @2200 rpm |
120.8 lb-ft | 33% more |
| 1/8 mile, elapsed time | 11.68 sec | 10.98 sec | -0.70 sec | 6% quicker |
| 1/8 mile, trap speed | 63.21 mph | 67.50 mph | 4.29 mph | 7% faster |
| 1/4 mile, elapsed time | 17.92 sec | 16.86 sec | -1.06 sec | 6% quicker |
| 1/4 mile, trap speed | 79.26 mph | 83.96 mph | 4.70 mph | 6% faster |
| 1/4 mile, Trucklengths over Stock (Length = 20') | - | 11.4 trucklengths | - | - |
| 0-60 mph elapsed time | 10.72 sec | 9.06 sec | -1.66 sec | 15% faster |
| 0-60 mph distance | 572.3 ft | 480.9 ft | -91.4 ft | 16% less |
| Application | Year Range | Part # |
|---|---|---|
| Pillar mount, 1 gauge Ford Super Duty | 1999-03 | 63217 |
| Six-Gun Diesel Tuner Ford 7.3L | 1999-03 | 66513 |
| Six-Gun diesel tuner | No EGT Ford 7.3L | 1999-03 | 66514 |
| Six-Gun Diesel Tuner, W/ldwire Ford 7.3L | 1999-03 | 66515 |
| Tuner- Six-Gun Diesel Tuner '99-03 |
“When I was at his [Gale Banks’] shop, I realized that he’s so immersed in diesel technology he could be Dr. Diesel.”
Jay Leno in Popular Mechanics (Sept '05)