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Banks Power logo

Banks PowerPack System

Banks PowerPack System
free shipping special with no handling fees
Click Here To Order
Gains Up To:+100 hp/+230 lb-ft

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.
GM 2004-2005 GM Duramax LLY

Colossal power stays cool, sips fuel.
All that improved airflow is then balanced with Banks’ advanced CleanTune™ 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.
Banks IQ now included

System Includes:
EconoMind® Diesel Tuner & Banks iQ™
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.
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Techni-Cooler® Intercooler System
Everything about Techni-Cooler is bigger, including the core area, which has 34% more flow volume. Increases air density for more continuous power.
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Banks Ram-Air® Intake System
Flowbench 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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Monster® Diesel Duals Exhaust
4" stainless mandrel-bent system more than doubles stock flow; cuts backpressure up to 98%; lowers EGTs; rich, authoritative sound; safely clears spare tire; huge polished tips. Note: Split-duals are for single-rear wheel applications only.
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Or choose the single exhaust
Monster® Exhaust
4" stainless constant-diameter pipes and straight-thru muffler improve flow up to 176% and lower EGTs. Cuts backpressure up to 98%; rich, throaty sound.
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Or choose the dual exhaust
Monster Muffler
  • Polished-stainless with straight-through 4” diameter flow path
  • Exclusive expansion chamber dissipates annoying mid-range drone
  • Flows up to 201% better than stock
  • Authoritative, but never overpowering, exhaust sound
Product Description Below Year Range Price Order
PowerPack system, single exhaust
LLY engine | Std cab, long bed

Banks Power Part #: 48989
Our Part #: BAN48989
2004-05 $3,278.60
PowerPack system, single exhaust
LLY engine | Ext/crew cab, short bed

Banks Power Part #: 48990
Our Part #: BAN48990
2004-05 $3,288.90
PowerPack system, single exhaust
LLY engine | Ext/crew cab, long bed

Banks Power Part #: 48991
Our Part #: BAN48991
2004-05 $3,329.07
PowerPack system, with Diesel Duals
LLY engine | Std cab, long bed

Banks Power Part #: 48992
Our Part #: BAN48992
2004-05 $3,628.80
PowerPack system, with Diesel Duals
LLY engine | Ext/crew cab, short bed

Banks Power Part #: 48993
Our Part #: BAN48993
2004-05 $3,634.98
PowerPack system, with Diesel Duals
LLY engine | Ext/crew cab, long bed

Banks Power Part #: 48994
Our Part #: BAN48994
2004-05 $3,638.07
Thoroughbred Diesel logo glowing Thoroughbred Diesel Performance and Repair Shop
4843 Rockwell rd.
Winchester, KY 40391
Call Toll Free: 1-866-737-4966

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