1987 BMW 325i Performance and Racing Products

K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. Designed to operate with all synthetic, conventional, and blended motor oils, K&N’s pleated synthetic-blend filtration media helps to shield your engine from contaminants and ensure a consistent flow of oil. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers, and is protected by the K&N 1-Year Limited Warranty.

Product Features:

• Designed to allow high flow rates and a consistent flow of oil to your engine
• Pleated synthetic-blend filtration media removes most harmful contaminants
• Fast and easy Wrench-Off removal using the welded one-inch hex nut
• High capacity to withstand the service intervals recommended by vehicle manufacturers
• Heavy-duty canister for outstanding durability
• Laboratory tested to ensure excellent capacity, efficiency, and mechanical strength
• Designed to operate with all synthetic, conventional, and blended motor oils
• 1-Year Limited Warranty

K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.

Product Features:

• HIGH FLOW RATES: Designed to provide exceptional flow rates and a consistent flow of oil to your engine
• VERSATILE COMPATIBILITY: Designed to operate with all synthetic, conventional, and blended motor oils
• PROTECT YOUR ENGINE: Pleated synthetic-blend filtration media removes most harmful contaminants
• EXTENSIVELY TESTED: Laboratory tested to ensure excellent capacity and burst strength
• EASY TO REMOVE: Fast and easy Wrench-Off removal
• HEAVY-DUTY CONSTRUCTION: Heavy-duty canister for outstanding durability
• HIGH CAPACITY: Withstand the longer service intervals now recommended by some vehicle manufacturers

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 provides 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 Series Intakes are not legal for use in California and other US States adopting California emission standards.

Product Features:

• Guaranteed to increase horsepower
• Designed to improve throttle response and engine sound
• Replaces entire factory air intake system
• Not legal for highway use in states adopting California emission regulations
• Washable and reusable lifetime air filter
• Lasts up to 100,000 miles before service is required (depending on driving conditions)
• Easy to install, usually in 90 minutes or less
• K&N No-Hassle Lifetime Limited Warranty