Buy Factory Direct: 800-601-8072
’04-05 Chevy/GMC 6.6L Duramax LLY
Ultimate Work Power System
- Intake, intercooler & exhaust upgrades + advanced tuning
- Optimizes airflow, air density, continuous power & MPG
- Honors the host vehicle & improves longevity
- Powers up hills 22% faster—in a higher gear
- PowerPack hauls mass—and hauls ass!
Gains Up To:+100 hp/+230 lb-ft
PowerPack® System
The cure for airflow restrictions.
The stock LLY is riddled with airflow bottlenecks—including the intercooler. PowerPack replaces them with free-flowing components that dramatically increase intake airflow and air density and expel exhaust with virtually no backpressure.
Colossal power stays cool, sips fuel.
All that improved airflow is then balanced with Banks’ advanced CleanTuneTM Technology for 41% more HP and 52% more torque than stock, without adding black smoke. This is load-hauling, hill-flattening constant-duty power that keeps its cool. It’ll launch you from 0-60 mph 13 sec. quicker and from 40-60 mph 8 sec. quicker when towing. And thanks to the EconoMind’s fuel savings features, you’ll get up to 19% more MPG, too. Sweet!
The Banks difference? Engineering.
Forget mis-matched components. Run away from tuners that can destroy your engine. Everything in PowerPack is engineered to work together to maximize your engine’s power, efficiency and durability. PowerPack honors your vehicle by safely living within the limits of your engine and powertrain. Your Duramax will run stronger and live longer!
All gains measured at the rear wheels. Please note: Palm Tungsten E2 sold separately.
System Includes:
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Banks Ram-Air® Intake SystemFlowbench developed, dyno proven. Improves airflow up to 57%; adds up to +39 hp/+69 lb-ft more than a tuner alone! Enclosed cold-air box; huge 7-1/8" outlet. |
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EconoMind™ Diesel Tuner & PowerPDA®Advanced tuning for towing/work adds up to +75 hp, +170 lb-ft (rear wheels) with built-in safety, adjust-on-the-fly power and fuel savings at all levels; plus flexible touch-screen vehicle command center. (Note: Palm Tungsten E2 sold separately.) |
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Monster® Diesel Duals Exhaust4” stainless split-dual system more than doubles stock flow & cuts backpressure 98% for more power & lower EGTs; rich, throaty sound; huge polished tips; safely clears spare tire Or choose the single exhaust... |
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Monster® Exhaust4" stainless constant-diameter pipes and straight-thru muffler improve flow up to 176% and lower EGTs. Cuts backpressure up to 98%; rich, throaty sound. Of choose the dual exhaust... |
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Techni-Cooler® Intercooler SystemEverything about Techni-Cooler is bigger, including the core area, which has 34% more flow volume. Increases air density for more continuous power. Watch the video... |
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Monster Muffler
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| Application | Year Range | Part # |
|---|---|---|
| PowerPack system, single exhaust LLY engine | Std cab, long bed |
2004-05 | 48989 |
| PowerPack system, with Diesel Duals LLY engine | Std cab, long bed |
2004-05 | 48992 |
| PowerPack system, single exhaust LLY engine | Ext/crew cab, short bed |
2004-05 | 48990 |
| PowerPack system, with Diesel Duals LLY engine | Ext/crew cab, short bed |
2004-05 | 48993 |
| PowerPack system, single exhaust LLY engine | Ext/crew cab, long bed |
2004-05 | 48991 |
| PowerPack system, with Diesel Duals LLY engine | Ext/crew cab, long bed |
2004-05 | 48994 |
Owners Manual(s)
| PowerPack System (LB7 & LLY pickup) 01-05 (Part #96776) |  Download |
| Power Pack/Stinger w/Economind ('06-07) LLY & LBZ (Part #96506) | Download |
Accolades
“Gale Banks Engineering is one of the world's foremost long-distance engine builders, as well as single and twin turbocharger designers and racers.”
— Super Chevy