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PowerPack® System

Banks PowerPack includes stainless-steel TorqueTubes, the industry's only exhaust manifolds specifically tuned for use in motorhomes. Banks scouts out factory-bred sloppiness and restrictions, replacing them with free-flowing, durable intake and exhaust components that work in concert to optimize power, torque, mileage and durability. PowerPack attains top gains of +79 hp and +96 lb-ft torque, with 19% better fuel economy—without expensive high octane.

Important: Some vehicle configurations require an extension kit for proper fit.

Single-air pump

Dual-air pump

Electronic Fuel Injection

Test vehicle: 31-foot GM 7.4L motorhome, P-30 chassis, throttle-body injected

Horsepower and torque measured at rear wheels.


PowerPack® System Stock Banks Improvement Results
Horsepower, best gain 142.9 hp (4400 rpm) 221.4 hp (4400 rpm) +78.5 horsepower 55% more (4400 rpm)
Horsepower, peak-to-peak 177.0 hp (3300 rpm) 233.3 hp (4000 rpm) +56.3 horsepower 32% more, peak-to-peak
Horsepower, upshift point (at wide-open throttle) 146.0 hp (4300 rpm) 224.0 hp (4300 rpm) +78.0 horsepower 53% more (4300 rpm)
Torque, best gain 186.8 lb-ft (4200 rpm) 283.1 lb-ft (4200 rpm) +96.3 lb-ft torque 52% more (4200 rpm)
Torque, peak-to-peak 342.3 lb-ft (1800 rpm) 402.9 lb-ft (1800 rpm) +60.6 lb-ft torque 18% more, peak-to-peak
Torque, downshift point (at wide-open throttle) 312.1 lb-ft (2600 rpm) 393.5 lb-ft (2600 rpm) +81.4 lb-ft torque 26% more (2600 rpm)
Exhaust gas temperature 1,552°F 1,388°F -164°F 11% cooler
Exhaust backpressure (at equal airflow) 7.5 psi 0.75 psi -6.75 psi 90% less backpressure
Air cleaner vacuum (at equal horsepower) 17.0 in/H2O 2.4 in/H2O -14.6 in/H2O 86% less restriction
0-60 mph acceleration, time 24.19 sec 18.38 sec -5.81 sec 24% quicker
0-60 mph acceleration, distance 1,325 ft 1,008 ft -317 ft 24% less distance
40-60 mph acceleration, time 12.73 sec 9.42 sec -3.31 sec 26% quicker
Maximum speed, hill-climb (6% grade) 57 mph 68 mph +11 mph 19% faster
Fuel economy (over 7,000-mile test route) 6.90 mpg 8.25 mpg +1.35 mpg 20% better mileage
Best Gains
+58 horsepower
+64 lb-ft torque
11% better mileage
ApplicationYear RangePart #
Heatshield kit, muffler (26.5"L)
GM 454 MH, Carbureted		 26100
Chrome tailpipe heat shield kit, 3" tailpipe (24"L)
Use With 3" Tail Pipes		 26105
Chrome tailpipe heatshield kit, 3.5" tailpipe (19"L)
Use With 3 1/2" Tail Pipes		 26106
Starter heatshield kit
GM 454, Truck/Motorhome		 26120
Oil filter heatshield kit
GM 454 Truck/Motorhome		 26123
PowerPack System, stainless
Class-A motorhome | Carbureted, single air pump*		1982-95 49051
PowerPack System, stainless
Class-A motorhome | Carbureted, dual air pump*		1982-95 49052
PowerPack System, stainless
Class-A motorhome | EFI*		1982-95 49069
Extension kit, stainless (179-208" wheelbase)
GM 454 MH Carb, 179"-208" W/b		 49150
Extension kit, stainless (209-228" wheelbase)
GM 454 MH Carb, 209"-228" W/b		 49152
Extension kit, stainless (179-208" wheelbase)
GM 454 MH EFI, 179"-208" W/b		 49154
Extension kit, stainless (209-228" wheelbase)
GM 454 MH EFI, 209"-228" W/b		 49155
Wire extension, O2 sensor
GM 454 EFI, Late		1982-95 62306

Owners Manual(s)

PowerPack system (Carbureted, single air pump) (Part #96340) Tech_icon Download
PowerPack system (Carbureted, dual air pump) (Part #96341) Tech_icon Download

RV Today features Banks

It's an old episode but what Gale explains about the principles of improving the performance in your RV still applies today.

Accolades

“Looking to take your turbodiesel’s performance to the next level? Look no further than Gale Banks Engineering. ”
AutoWeek (May '05)