K&N 57 SERIES (FIPK) COLD AIR INTAKE SYSTEM Fits: Dodge Durango 5.7L Hemi 2004 - 2006 Part Number: 57-1539 K&N 57 Series (FIPK) Cold Air Intake System for the Dodge Durango 5.7L Hemi 2004 - 2006 57-1539 The Generation II FIPK® is K&N's ultimate performance product, designed to increase power by as much as 10%. Most FIPK's are street legal in all 50 US states and come with a Million Mile Limited Warranty. K&N intake systems replace your vehicle's restrictive factory air filter and air intake housing. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your vehicle's engine to inhale a larger amount of air than the OEM air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. The filters on these kits are washable and reusable. Most of our intake kits are relatively easy to install using tools commonly available (see installation instructions). [MORE] 57-1539 Product Specifications Product Style: 57 Series FIPK Estimated Horsepower Gain: 17.54 HP @ 5053 RPM Type: Gen II Replacement Filter: RF-1041 CARB EO Number: D-269-34 CARB Exempt: Yes Weight: 10.8 lb (4.9 kg) Product Box Length: 22.25 in (565 mm) Product Box Width: 14.25 in (362 mm) Product Box Height: 12.5 in (318 mm) 2007 CHRYSLER ASPEN. 5.7L V8 F/I - All CARB Exempt: Yes 2006 DODGE DURANGO 5.7L V8 F/I - All CARB Exempt: Yes 2005 DODGE DURANGO 5.7L V8 F/I - All CARB Exempt: Yes 2004 DODGE DURANGO 5.7L V8 F/I - All CARB Exempt: Yes Availability: ships in 1-3 business days