BMW 325i Engine Cold Air Intakes

K&N air intake systems are engineered for increased performance, outstanding durability, and sleek aesthetics – and are available in an assortment of finishes and powder coatings. K&N’s state-of-the-art High-Flow Air Filter helps to shield your engine from contaminants, while a meticulously engineered aerodynamic tube design contributes to a guaranteed increase in horsepower and torque. K&N air intake systems are designed to improve acceleration, towing, and throttle response while providing world class protection for your engine. Our intakes are dyno-tested and provide up to 50% more airflow compared to OEM intake systems. K&N intakes are easy to install and maintain with air filter cleaning required only every 100,000 miles.

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.

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.

K&N air intake systems are engineered for increased performance, outstanding durability, and sleek aesthetics – and are available in an assortment of finishes and powder coatings. K&N’s state-of-the-art High-Flow Air Filter helps to shield your engine from contaminants, while a meticulously engineered aerodynamic tube design contributes to a guaranteed increase in horsepower and torque. K&N air intake systems are designed to improve acceleration, towing, and throttle response while providing world class protection for your engine. Our intakes are dyno-tested and provide up to 50% more airflow compared to OEM intake systems. K&N intakes are easy to install and maintain with air filter cleaning required only every 100,000 miles.

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.

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
• 41% cfm Flow Gain
• Improved Throttle Response

K&N air intake systems are engineered for increased performance, outstanding durability, and sleek aesthetics – and are available in an assortment of finishes and powder coatings. K&N’s state-of-the-art High-Flow Air Filter helps to shield your engine from contaminants, while a meticulously engineered aerodynamic tube design contributes to a guaranteed increase in horsepower and torque. K&N air intake systems are designed to improve acceleration, towing, and throttle response while providing world class protection for your engine. Our intakes are dyno-tested and provide up to 50% more airflow compared to OEM intake systems. K&N intakes are easy to install and maintain with air filter cleaning required only every 100,000 miles.

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.

Large Three Layer Performance Air Filter:This 7-1/2″ tall 360-degree radial flow air filter with a 4″ flange features our oil-free Pro DRY S media with three layers of synthetic media for maximum convenience. Its progressive layering provides great filtration efficiency and dust holding capacity, while not requiring the use of oils. This media is best suited for street use.

Product Features:

• +13 lbs. x ft. TQ & +15 HP
• Outflows Factory Intake by 5%
• Measured Flow: 530 CFM @ 7″ H2O
• Lightweight 100% Twill Weave Carbon Fiber Housing and Tube

The smooth one-piece sealed housings with auxiliary air inlets are used to eliminate the use of multiple-piece housings and ensure the coolest air intake charge available. Large, clear sight windows are used for a hassle-free filter inspection and an aggressive style. This System uses CAD designed, dyno-tuned, roto-molded intake tubes to achieve maximum power gains while maintaining a perfect fit. This intake system utilizes oil-free, large 5″ tall conical 360 degree radial flow performance air filters with 3-Layer progressively finer porosity synthetic media for maximum convenience. Premium clamps are used for strength and durability while also providing the most secure installation available. Momentum intakes are designed with fewer parts for a quick and simple installation.

Product Features:

• Pro 5R Filter Media
• 5-Layer Progressive Cotton Gauze Media
• Washable And Reusable Air Filter
• Rotomolded Tube

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 DRY S Air Filter For Maximum Convenience
• Rotomolded Plastic Tube For Maximum Air Flow
• 51% 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
• 60% cfm Flow Gain
• Improved Throttle Response

Large Five Layer Performance Air Filters: These 360-degree radial flow air filters feature a 4″ flange and our pre-oiled Pro 5R media with five layers of progressively finer cotton gauze media for maximum performance. They provide your engine with the largest amount of high-flowing air and deliver the highest power gains in most cases. This media is perfect for street and/or track use.Dual Heat-Resistant Housings: The included massive air filters are surrounded by open-element XLPE (cross-linked polyethylene) polymer housings that minimize warm engine air for maximum performance. Their open design allows for easy viewing of their air filter, yet creates a heat-blocking seal when the vehicle’s hood is closed.Optional Dynamic Air Scoops: In addition to the system’s built-in air inlets, optional Dynamic Air Scoops (sold separately) are available to bring more cool air from the front of the vehicle into the intake housing (PN 54-12489-C).Dyno-Tuned Intake Tubes: This system features high quality, computer-designed, dyno-tuned intake tubes to achieve maximum power gains while maintaining a perfect fit. Their XLPE material is heat soak resistant and extremely durable.Hassle-Free Installation: This is a direct fit intake system that utilizes factory mounting points and requires no cutting or modifications. All necessary clamps, couplings, and hardware are included. Its revolutionary design, featuring our patent pending filter-to-housing interface, uses half the number of parts of a traditional cold air intake system.

Product Features:

• +26 lbs. x ft. TQ & +31 HP
• Outflows Factory Intake by 19%
• Measured Flow: 595 CFM @ 7″ H2O
• Seals to hood when closed to reduce intake air temperature

Large Three Layer Performance Air Filters: These 360-degree radial flow air filters feature a 4″ flange and our oil-free Pro DRY S media with three layers of synthetic media for maximum convenience. Their progressive layering provides great filtration efficiency and dust holding capacity, while not requiring the use of oils. This media is best suited for street use.Dual Heat-Resistant Housings: The included massive air filters are surrounded by open-element XLPE (cross-linked polyethylene) polymer housings that minimize warm engine air for maximum performance. Their open design allows for easy viewing of their air filter, yet creates a heat-blocking seal when the vehicle’s hood is closed.Optional Dynamic Air Scoops: In addition to the system’s built-in air inlets, optional Dynamic Air Scoops (sold separately) are available to bring more cool air from the front of the vehicle into the intake housing (PN 54-12489-C).Dyno-Tuned Intake Tubes: This system features high quality, computer-designed, dyno-tuned intake tubes to achieve maximum power gains while maintaining a perfect fit. Their XLPE material is heat soak resistant and extremely durable.Hassle-Free Installation: This is a direct fit intake system that utilizes factory mounting points and requires no cutting or modifications. All necessary clamps, couplings, and hardware are included. Its revolutionary design, featuring our patent pending filter-to-housing interface, uses half the number of parts of a traditional cold air intake system.

Product Features:

• +16 lbs. x ft. TQ & +19 HP
• Outflows Factory Intake by 16%
• Measured Flow: 580 CFM @ 7″ H2O
• Seals to hood when closed to reduce intake air temperature

Large Three Layer Performance Air Filters:These 6″ tall 360-degree radial flow air filters feature our oil-free Pro DRY S media with three layers of synthetic media for maximum convenience. Their progressive layering provides great filtration efficiency and dust holding capacity, while not requiring the use of oils. This media is best suited for street use. Their inverted top makes for more filter surface area, resulting in longer service intervals.

Product Features:

• Outflows Factory Intake by 32%
• Measured Flow: 765 CFM @ 7″ H2O
• Open-Element Design Allows For Viewing of the Air Filters, Yet Seals When Hood is Closed to Keep Out Hot Air
• Washable and Reusable Pro DRY S Air Filters for Maximum Convenience

The K&N 69-2003TFK Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some BMW M6 models. The restrictive factory air filter and air intake housing are replaced by the K&N Typhoon air intake which is designed to dramatically reduce air flow restriction as it smoothes and straightens air flow. This allows your engine to inhale a larger amount of air than the factory air intake. More air means more usable power and acceleration throughout the engine’s RPM range. The 69-2003TFK air intake comes with dual black rubber topped K&N high-flow air filters with heat shields that install into the previous air box areas. Air is directed through the intake tubes into the engine’s throttle bodies for a guaranteed power gain. The intake tubes have an attractive flat black powder-coat finish that’s made to last and they accommodate the factory mass air sensors and a replacement silicone air injection hose. The oversized cone shaped air filters can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install usually in 90 minutes or less using existing factory mounting points. The tools needed are a screwdriver, ratchet set and several wrenches. Some Typhoon air intakes are not legal for sale or use in California and other states adopting California emission standards while others are CARB exempt and 50 state legal. Check the K&N catalog or website for vehicle applications and specific CARB status for each vehicle and air intake.

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.

Unique One-Piece Sealed Housing: A custom CAD designed roto-molded housing made high quality plastic eliminates the use of multiple components and ensures the coolest air intake charge available. The roto-molded housing is made out of black cross-linked polyethylene. Carbon Fiber Finish Trim Cover: This carbon fiber finish trim cover is constructed with lightweight vacuumed formed ABS plastic for underhood appearance. High Quality Tube: This system uses a high quality plastic CAD designed, dyno-tuned, roto-molded intake tube to achieve maximum power gains while maintaining a perfect fit. This tube has a built-in resonance chamber to catch un-wanted air intake noises. Large 5-Layer Performance Air Filter: This sealed intake system utilizes a pre-oiled, large X” tall conical inverted top 360 degree radial flow performance air filter with 5-layers of progressive finer mesh cotton media providing maximum airflow and performance. Premium Hardware: Premium hardware and clamp are used to securely mount the high flow air filter and the intake tube. This sealed intake system is designed with fewer parts for a quick and simple installation.

Product Features:

• 1056 CFM Rating at 7 in. H2O
• Outflows Factory Intake By Up To 98 Percent
• High Quality 1-Pc. Sealed Housing
• CAD Designed Roto-Molded Intake Tube

Unique One-Piece Sealed Housing: A custom CAD designed roto-molded housing made high quality plastic eliminates the use of multiple components and ensures the coolest air intake charge available. The roto-molded housing is made out of black cross-linked polyethylene. Carbon Fiber Finish Trim Cover: This carbon fiber finish trim cover is constructed with lightweight vacuumed formed ABS plastic for underhood appearance. High Quality Tube: This system uses a high quality plastic CAD designed, dyno-tuned, roto-molded intake tube to achieve maximum power gains while maintaining a perfect fit. This tube has a built-in resonance chamber to catch un-wanted air intake noises. Large 3-Layer “Oil-Free” Performance Air Filter: This sealed intake system utilizes an oil-free, large 6″ tall conical inverted top 360 degree radial flow performance air filter with 3-Layer progressively finer porosity synthetic media for maximum convenience. Premium Hardware: Premium hardware and clamp are used to securely mount the high flow air filter and the intake tube. This sealed intake system is designed with fewer parts for a quick and simple installation.

Product Features:

• 798 CFM Rating at 7 in. H2O
• Outflows Factory Intake By Up To 50 Percent
• High Quality Sealed Housing w/Air Inlet
• CAD Designed Roto-Molded Intake Tube

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
• Oiled
• All Hardware Included
• 5 Layer Cotton Gauze Media

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
• Improved Throttle Response
• Repl. Factory Intake For Improved HP/Torque/Styling

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:

• Outflows Factory Intake
• Carbon Fiber Reduces Weight
• No Cutting or Drilling For Faster Installation

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
• 44% 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
• Improved Throttle Response
• 2 Year Limited Warranty

Unique One-Piece High Quality Housing W/ Sight Window: The smooth one-piece (Patent Pending) high quality sealed housing with auxiliary air inlet is used to eliminate the use of multiple-piece housings and ensure the coolest air intake charge available. A large, clear sight window is used for a hassle-free filter inspection and an aggressive style. High Quality Tube: This system uses a high quality plastic CAD designed, dyno-tuned, roto-molded intake tube to achieve maximum power gains while maintaining a perfect fit. Large 5-Layer Performance Air Filter: The Momentum GT intake is designed around a pre-oiled, large 8″ tall 360 degree radial flow performance air filter with 5-layers of progressive finer mesh cotton media providing maximum airflow and performance. The unique air filter to housing interface (patent pending) allows for maximum filter size which increases the available air volume while simplifying the installation process. Aluminum Heat-Shield Panel: A durable aluminum heat-shield panel is secured on the housing to protect it from the high heat of the turbocharger. Premium Hardware: Premium stainless steel clamps and a silicone bellow coupling are used for strength and durability while also providing the most secure installation available. Momentum GT intakes are designed with fewer parts for a quick and simple installation. Note: This intake system is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles.

Product Features:

• Outflows Factory By Up To 14%
• High Quality One Piece Rotomolded Sealed Housing
• Built In Sight Window Provides Easy Inspection Of Filter
• Heat Shield Protects The Housing From Turbocharger Heat

Bringing you the next generation of intakes, the Momentum GT sealed air intake system is designed using the most up-to-date engineering tools and techniques to provide you with the perfect blend of power and protection. This intake system is superior in every way. From the one-piece sealed housing with a tire tread top, to the massive air filter and premium hardware, we spared no expense to give you the best intake on the market.

Product Features:

• Pro 5R Filter Media
• 5-Layer Progressive Cotton Gauze Media
• Washable And Reusable Air Filter
• 7 in. Tall 360 deg. Inverted Top Air Filter

Bringing you the next generation of intakes, the Momentum GT sealed air intake system is designed using the most up-to-date engineering tools and techniques to provide you with the perfect blend of power and protection. This intake system is superior in every way. From the one-piece sealed housing with a tire tread top, to the massive air filter and premium hardware, we spared no expense to give you the best intake on the market.

Product Features:

• 1-Piece Housing
• 5 Layer Performance Air Filter
• Premium Hardware

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
• Improved Throttle Response
• 2 Year Limited Warranty

Unique One-Piece High Quality Housing W/ Sight Window: The smooth one-piece (Patent Pending) high quality sealed housing with auxiliary air inlet is used to eliminate the use of multiple-piece housings and ensure the coolest air intake charge available. A large, clear sight window is used for a hassle-free filter inspection and an aggressive style. High Quality Tube: This system uses a high quality plastic CAD designed, dyno-tuned, roto-molded intake tube to achieve maximum power gains while maintaining a perfect fit. Large 3-Layer Performance Air Filter: The Momentum GT intake is designed around an oil-free, large 8″ tall 360 degree radial flow performance air filter with 3-layers of progressive finer porosity synthetic media providing maximum convenience. The unique air filter to housing interface (patent pending) allows for maximum filter size which increases the available air volume while simplifying the installation process. Aluminum Heat-Shield Panel: A durable aluminum heat-shield panel is secured on the housing to protect it from the high heat of the turbocharger. Premium Hardware: Premium stainless steel clamps and a silicone bellow coupling are used for strength and durability while also providing the most secure installation available. Momentum GT intakes are designed with fewer parts for a quick and simple installation.

Product Features:

• Outflows Factory Intake By Up To 14%
• High Quality 1-Piece Roto-Molded Sealed Housing w/Aux. Air Intake
• Built In Sight Window Provides Easy Inspection
• Aluminum Heat Shield To Protect The Housing From Turbo Heat