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Banks Power Duramax LLY PowerPack System

XDP Price: From $3,278.60 to $3,638.07
Manufacturer: Banks Power

Application: 04.5-05 GM 6.6L Duramax LLY

XDP $5 Pricebeat Guarantee

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There is only a handful of officially authorized online Banks Power dealers, and I'm proud to say that Xtremediesel.com is now one of them. Because Banks and Xtremediesel.com are partners in the diesel performance aftermarket, I want you to feel confident buying our products from them. From Banks power and braking components to engineered power systems, look no further than Xtremediesel.com! 

-- Colin Banks, General Manager
   Gale Banks Engineering


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 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. +100 hp/+230 lb-ft

Monster® Diesel Duals Exhaust

4” 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...


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.

Of choose the dual exhaust...


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.


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. Watch the video...


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

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