Buy Factory Direct: 800-601-8072
’01-08 GM 8.1L Workhorse
Total Power System for Towing & Work
Delivers top gains of +51 hp and +68 lb-ft torque, plus better fuel economy.
Gains Up To:+51 hp/+68 lb-ft
Stinger® System
CLASS-A MOTORHOME, W-Series and P-Series: Affordable stainless-steel Stinger includes Banks� all-new Ram-Air intake system (available for W-Series only) that eliminates restrictions for effortless flow. Optional OttoMind Programmer removes the factory-imposed power delay so you�ll have acceleration when you need it. Stinger delivers top gains of +51 hp and +68 lb-ft torque to the rear-wheels, plus better fuel economy. Because engine airflow is the central principle to Stinger and all Banks power-enhancement products, you'll have a more durable vehicle and longer engine life.
Includes: High-flow Banks Ram-Air intake system (W-Series only) with Ram-Air filter & service kit, filter housing cover, large-sized tubing, and adapter; OttoMind Programmer (available for �01-05 models); Stainless, constant-diameter Monster exhaust with 4" tailpipe; Polished-stainless, 5" double-wall tailpipe tip with rolled edge; Comprehensive Owner's Installation Manual.
Motorhome Power
Gasoline: GM 8.1L Workhorse, '01-06
Test vehicle: 2004 Workhorse W-22, GM 8.1L V-8
Transmission: 5-speed Allison
| Stinger System with OttoMind |
Stock | Banks | Improvement | Results |
|---|---|---|---|---|
| Horsepower: Best gain (hp) | 197.0 @3300 rpm |
232.0 @3300 rpm |
+35.0 hp | 18% more |
| Horsepower: Peak-to-peak (hp) | 222.2 @4200 rpm |
257.0 @4200 rpm |
+34.8 horsepower | 16% more, peak-to-peak |
| Torque: Best gain (lb-ft) | 313.5 @3300 rpm |
369.2 @3300 rpm |
+55.7 lb-ft torque | 18% more (3300 rpm) |
| Torque: Peak-to-peak (lb-ft) | 314.2 @3400 rpm |
369.2 @3300 rpm |
+55.0 lb-ft torque | 18% more, peak-to-peak |
| Acceleration, 0-60 mph Time (sec) | 23.08 | 20.47 | -2.61 sec | 11% quicker |
| Acceleration, 0-60 mph Distance (ft) | 1,252 | 1,100 | -152 ft | 12% less |
| Acceleration, 40-60 mph Time (sec) | 11.12 | 9.75 | -1.37 sec | 12% quicker |
| Acceleration, 40-60 mph Distance (ft) | 831 | 727 | -104 ft | 13% less |
| Maximum speed, hill-climb (mph) 6% grade | 57 (3rd Gear) |
63 (3rd Gear) |
+6 mph | 11% faster |
| Fuel Economy (mpg) 55-MPH, 7% grade | 2.68 | 2.96 | +0.28 mpg | 10% better |
| Fuel Economy (mpg) 70-MPH, 0% grade | 7.19 | 7.54 | +0.35 mpg | 5% better |
System Includes:
| Application | Year Range | Part # |
|---|---|---|
| Stinger System w/OttoMind P-series chassis | Driver-side tailpipe exit |
2003-04 | 49565 |
| Stinger System w/OttoMind W-series chassis | Driver-side tailpipe exit |
2001-02 | 49566 |
| Stinger System w/OttoMind W-series chassis | Passenger-side tailppipe exit |
2001-02 | 49567 |
| Stinger System w/OttoMind W-series chassis | Driver-side tailpipe exit |
2001-07 | 49568 |
| Stinger System w/OttoMind W-series chassis | Passenger-side tailpipe exit |
2001-07 | 49569 |
| Stinger System P-series chassis | GM 4-speed trans | Driver-side tailpipe exit |
2001-04 | 49550 |
| Stinger System W-series chassis | Allison trans (all) | Driver-side tailpipe exit |
2001-06 | 49552 |
| Stinger System W-series chassis | Allison trans (all) | Passenger-side tailpipe exit |
2001-06 | 49553 |
| Exhaust extension kit Exhaust extension kit | P-series | 190" wheelbase |
2001-08 | 53681 |
| Exhaust extension kit Exhaust extension kit | P-series | 208" wheelbase |
2001-08 | 53682 |
Owners Manual(s)
| Stinger & PowerPack systems (Class-A, W-24 chassis, 2005 & Later) (Part #96438) |  Download |
| Stinger & PowerPack systems (Class-A, Workhorse chassis, P-series) (Part #96432) | Download |
| Stinger & PowerPack systems (00-07) (Part #96431)
Class-A, Workhorse chassis, W-series |
Download |
| Exhaust Extension Kit 2005 (Class-A, Workhorse chassis, W-series) (Part #96428) | Download |
Accolades
“Banks has earned a reputation in the truck world for making world class products.”
— Off-Road (Oct '05)