BMW 525i Performance Air Intake Kits

Maximum performance within minutes is what this aFe Stage 1 cold air intake system delivers. Enclosed in a durable 16 gauge heat shield; a massive washable/reusable; 360 deg. conical Pro 5R air filter increases airflow resulting in an additional 6 hp; and 7 lbs./ft/ torque. This intake system also features a unique 3-angle adaptor for increased air velocity. The Pro 5R air filter is constructed with 100 percent polyurethane for long life and multiple cleaning cycles. This intake is the easiest intake on the market to install. Simply remove the factory intake and mount the 3-angle adaptor with the air filter to the MAF sensor tube and you are breathing more air and producing more power.

Product Features:

• Uses Pro 5R Filter For Maximum Air Flow
• 360 deg. Radial Flow Air Filter
• 5 Layer Gotten Gauze Media
• Billet 3 Angle Filter Adapter

Easy to install one piece 16-gauge powder-coated heat shield requires no cutting or drilling. Stylish powder-coated steel or brushed aluminum cover blocks heat and directs cold air to the filter while quieting intake noise. The precision designed molded plastic intake tube maximizes airflow volume and speed for optimum power gains. 360 degree flow, washable and reusable, limited lifetime filters are high flow and high performance.

Product Features:

• Uses Pro 5R Filter For Maximum Air Flow
• Rotomolded Plastic Tube For Maximum Air Flow
• 45% cfm Flow Gain
• Improved Throttle Response

Easy to install one piece 16-gauge powder-coated heat shield requires no cutting or drilling. Stylish powder-coated steel or brushed aluminum cover blocks heat and directs cold air to the filter while quieting intake noise. The precision designed molded plastic intake tube maximizes airflow volume and speed for optimum power gains. 360 degree flow, washable and reusable, limited lifetime filters are high flow and high performance.

Product Features:

• Uses Pro 5R Filter For Maximum Air Flow
• Rotomolded Plastic Tube For Maximum Air Flow
• 48% cfm Flow Gain
• Improved Throttle Response

Maximum performance within minutes is what this aFe Stage 1 cold air intake system delivers. Enclosed in a durable 16 gauge heat shield; a massive washable/reusable; 360 deg. conical Pro 5R air filter increases airflow resulting in an additional 6 hp; and 7 lbs./ft/ torque. This intake system also features a unique 3-angle adaptor for increased air velocity. The Pro 5R air filter is constructed with 100 percent polyurethane for long life and multiple cleaning cycles. This intake is the easiest intake on the market to install. Simply remove the factory intake and mount the 3-angle adaptor with the air filter to the MAF sensor tube and you are breathing more air and producing more power.

Product Features:

• Uses Pro DRY S Air Filter For Maximum Convenience
• 360 deg. Radial Flow Air Filter
• 65% cfm Flow Gain
• Improved Throttle Response

K&N 57i Series induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range. The extra surface area of these open-air air filters provide even more airflow at lower restriction than a K&N O/E replacement filter which is limited to the size of the factory air box. The larger air filter also captures and holds more dirt increasing its service life before a cleaning is required (up to 100,000 miles). The filter is either directly attached to the engine carburetor or throttle body or indirectly through a tube assembly running from the filter to the engine. All adapters are made from high quality materials such as steel, aluminum, silicon or reinforced nylon to ensure long life. 57i Intakes are not legal for use in California and other US States adopting California emission standards.

Product Features:

• GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
• BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.
• IMPROVED ENGINE SOUND: Hear the power under the hood.
• WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants
• EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
• EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.
• DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
• HIGH QUALITY: Made in America.