BMW 525i Cold Air Intake

K&N 57I SERIES PERFORMANCE INDUCTION KIT, GENERATION I -- Designed To Increase Power And Acceleration Throughout The RPM Range, Replaces OEM Filter And Air Box, Works With Original Equipment Manufacturer Computer System, Features An Extra Surface Area That Captures And Holds More Dirt, Has A Service Life Of 100,000 Miles, Comes With A Washable And Reusable Cone Air Filter With Adapters, Easy Installation, With Manufacturer's Limited Million Mile Warranty

Fits the following 2001-2002 BMW 525i submodels:

• 2001-2002: Base; 6 Cyl 2.5L;

K&N 57I SERIES PERFORMANCE INDUCTION KIT, GENERATION I -- Designed To Increase Power And Acceleration Throughout The RPM Range, Replaces OEM Filter And Air Box, Works With Original Equipment Manufacturer Computer System, Features An Extra Surface Area That Captures And Holds More Dirt, Has A Service Life Of 100,000 Miles, Comes With A Washable And Reusable Cone Air Filter With Adapters, Easy Installation, With Manufacturer's Limited Million Mile Warranty

Fits the following 1992-1995 BMW 525i submodels:

• 1992-1995: Base; 6 Cyl 2.5L;

AFE STAGE 1 CLASSIC (Cx) COLD AIR INTAKE SYSTEM, PRO DRY S AIR FILTER -- Bold, Aggressive Performance In A Simple Package, Retains Stock Intake Tube, Includes A 360%XBA Radial Air Filter, Provides A Throaty Performance Sound, Easy Installation, Uses A Revolutionary Two-Ply Synthetic Air Filter With Oil Free Material That Is Functionally Superior To Traditional Paper Media And Single-Ply Synthetic, 99.4% Filtration Levels

Fits the following 2001-2003 BMW 525i submodels:

• 2001-2003: Base; 6 Cyl 2.5L; "GAS, FI, M54"

AFE STAGE 2 COLD AIR INTAKE SYSTEM -- Engineered To Deliver Maximum Performance Within Stock Engine Configuration, Replaces Both Stock Air Box And Intake Piping, Custom Air Tube Accelerates And Enhances Airflow For More Power, Includes A Large Washable/Reusable Filter For Great Airflow, Provides Aggressive Performance Sound, Simple Installation

Fits the following 2006-2007 BMW 525i submodels:

• 2006-2007: Base; 6 Cyl 3.0L; "GAS, FI, N52"

AFE STAGE 1 CLASSIC (Cx) COLD AIR INTAKE SYSTEM, PRO DRY S AIR FILTER -- Bold, Aggressive Performance In A Simple Package, Retains Stock Intake Tube, Includes A 360%XBA Radial Air Filter, Provides A Throaty Performance Sound, Easy Installation, Uses A Revolutionary Two-Ply Synthetic Air Filter With Oil Free Material That Is Functionally Superior To Traditional Paper Media And Single-Ply Synthetic, 99.4% Filtration Levels

Fits the following 2006-2007 BMW 525i submodels:

• 2006-2007: Base; 6 Cyl 3.0L; "GAS, FI, N52"

AFE MAGNUM FORCE STAGE 2 COLD AIR INTAKE SYSTEM -- Provides additional power up to 7 h.p. and 7 lb.-ft. of torque; Increases air flow up to 50 percent; 98.6 percent filtration efficiency; Up to 550 CFM; Includes Pro 5R Air Filter that is made of 5 layers of progressively finer medical-grade cotton gauze; Comes with durable 16-gauge powder-coated steel heat shield that seals to the hood; Delivers aggressive great performance sound and increases fuel economy; Features a premium quality construction with great seat-of-the-pants feel; Engineered to deliver maximum performance within the stock engine configuration; Replaces the entire stock air box; Its larger, washable, and reusable lifetime filter with 360-degree radial free flowing conical design accelerates and enhances airflow; No cutting or drilling required; It has pre-positioned opening for stock attachments to avoid dangling wires and relocating of hoses or tubes; With AFE's limited 2-year warranty.

Fits the following 2004-2005 BMW 525i submodels:

• 2004-2005: Base; 6 Cyl 2.5L; "GAS, FI, M54"

AFE MAGNUM FORCE STAGE 2 COLD AIR INTAKE SYSTEM -- Provides additional power up to 7 h.p. and 7 lb.-ft. of torque; Increases air flow up to 50 percent; 99.2 percent filtration efficiency; Up to 416 CFM; Includes Pro Dry S Air Filter that is made of 2 layers of randomly porous oil-free or dry synthetic fabric; Comes with durable 16-gauge powder-coated steel heat shield that seals to the hood; Delivers aggressive great performance sound and increases fuel economy; Features a premium quality construction with great seat-of-the-pants feel; Engineered to deliver maximum performance within the stock engine configuration; Replaces the entire stock air box; Its larger, washable, and reusable lifetime filter with 360-degree radial free flowing conical design accelerates and enhances airflow; No cutting or drilling required; It has pre-positioned opening for stock attachments to avoid dangling wires and relocating of hoses or tubes; With AFE's limited 2-year warranty.

Fits the following 2004-2005 BMW 525i submodels:

• 2004-2005: Base; 6 Cyl 2.5L; "GAS, FI, M54"

AFE MAGNUM FORCE STAGE 1 CX COLD AIR INTAKE SYSTEM, BLACK OE LOOK FINISH -- 5.5 in. Flange I.D., 7 in. Base, 7 in. Tall, Replaces OE Air Filter With High Flow Performance 360 Degrees Radial Flow Air Filter, Improves Torque, Throttle Response, And Acceleration, Increases Airflow By Up To 50% And Performance By Up To 4 hp And 5 ft.-lbs. Of Torque, Delivers A Throaty Performance Sound, Trim Sealed Or Covered To Seal Out Hot Engine Air, Features Washable And Reusable Filter Comes With The Industry's Deepest Pleats For Greater Flow And Dust Holding Capacity, Pre-Positioned Opening For Stock Attachments To Avoid Dangling Wires And Relocating Hoses Or Tubes, Includes 3 Angle Velocity Stack, Durable 16-Gauge Powder-Coated Steel Heat Shield That Seals To The Hood, Pre-Positioned PEM-Nuts For Faster And Easier Installation, No Cutting Or Drilling To The Engine Compartment Required, With AFE's Limited 2-Year Warranty

Fits the following 2001-2003 BMW 525i submodels:

• 2001-2003: Base; 6 Cyl 2.5L; "GAS, FI, M54"