Home » Banks Power Packages » Banks Six-Gun® Bundle for 04-05 GM 6.6L Duramax LLY - Dual and Single exhaust Op
Banks Six-Gun Bundle replaces the power-robbing factory airflow inefficiencies with free-flowing components that dramatically increase intake airflow and air density and expel exhaust with virtually no backpressure.
Power that keeps its cool.
Banks balances the improved airflow with advanced CleanTuneTM Technology that delivers up to 54% more horsepower and 68% more torque than stock without adding black smoke. This is tire-smoking, scenery-blurring power that keeps its cool while rocketing you from 0-60 mph 24% quicker and 154 feet ahead of stock!
Live long & run strong.
Forget mismatched components. Run away from tuners that can destroy your engine. Everything in the Six-Gun Bundle is engineered to work together to maximize your engine’s power, efficiency and durability. Six-Gun Bundle honors your vehicle by safely living within the limits of your engine and powertrain. Your Duramax will run stronger and live longer!
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.
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...
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...
Test vehicle: 2004 Chevrolet Silverado 2500, crew cab, long bed, single rear wheel
Engine: Duramax 6.6L LLY
Transmission: Allison 5-speed automatic
Horsepower and torque measured at rear wheels.
Note: Banks Horsepower and Torque tests performed with recommended airflow improvements
Jon of Indian Springs, Ohio, installed a Six-Gun Bundle on an ’05 GMC Sierra Duramax LLY with a 6.6L turbo-diesel
Wow, Wow, Wow. Just put the Six-Gun Bundle in last night at my brother’s shop. Made some runs down a 1/4 mile street behind the shop. Wanted to make comparison on the newfound power so I ran the truck against a Porsche 944 Turbo that my brother was working on and I think I left him looking for some more power on the 944. He had some problems keeping up with me. This is the most impressive upgrade I have ever done on any of my vehicles. Thanks Banks for an excellent system.
Gale talks with SpeedTV about what went into developing the Ram-Air cold air intake system. (Note: Some components or designs shown may not be available for all applications.)
The guys on TrucksTV have showcased the Banks PowerPDA vehicle command center a number of times, and here they are going over some of the highlights. (The PowerPDA has now been upgraded to the Banks iQ.)