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Bully Dog RFI Cold Air Intake for 2001-2005 GM Duramax
Bully Dog RFI Intake for the GM Duramax
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MSRP: $369.99
Special Sale Price: $295.99
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Product Code: 53100

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Bully Dog RFI Cold Air Intake Systems
The Bully Dog Rapid Flow Induction system is a fully enclosed air intake system. This design is very effective at  keeping hot air out of the engine. The RFI cold air intake draws cold air in from sources around the engine bay resulting in an improvement in performance and efficiency. With extensive testing, Bully Dog designed an enclosed air intake system along with a high flow cotton gauze filter that yields better air flow and colder intake temperatures than a stock system and other aftermarket open intake designs. 

Available Vehicle Applications:
  • Chevy/GMC Duramax 2500/3500 Trucks
    • 2001-2004 GM Duramax LB7 Engine: 8th Digit of VIN = 1
    • 2004.5-2005 GM Duramax LLY Engine: 8th Digit of VIN = 2
PROVEN RESULTS:
  • 10% Greater Air Flow At 60 mph in cruise control*
  • 10 degree lower intake temps at 60 mph in cruise control*
  • 10-15 added rear wheel horsepower*
  • 10-30 added rear wheel ft.-lbs. of torque*
*Mustang Dynamometer used to measure horsepower and torque results.
Results vs. stock air intake system.

  • Maximize Air Filter Cleaning Area
    • By using a conical air filter you can maximize the air filter cleaning area and allow the engine to breath easier giving you more horsepower.
  • Lifetime Reusable Gauze Filter
    • All RFI Induction systems use a lifetime reusable four layer cotton gauze filter that features an inverted cone design on the end of the filter. This unique design creates a greater surface area of filter media that enables it to trap dust particles as small as 0.50 micron.
  • Ideal for Performance Use
    • A greater surface area of filter media, combined with the RFI's deep pleat design, makes this filter ideal for high performance use.
  • Easy Installation
    • The installation of these systems is extremely easy and requires only basic hand tools.
  • Compatible
    • The Rapid Flow Induction works exceptionally well in conjunction with performance modules. The modules increase the amount of fuel going into the motor and create a need for increased air flow to lower exhaust temperatures. The end result is improved driveability, fuel mileage (improvement will vary), and acceleration.
  • Featured Design
    • The design of the air box draws cold air in, resulting in better performance

Please wait for the user manual and video to load. Bully Dog pre-filters and cleaning kits are optional items and not included.



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