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K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more

K&N Engineering is a globally recognized leader in automotive performance filtration products, specializing in high-flow air filters, cold air intake systems, and oil filters. Designed to improve airflow, K&N products enhance engine efficiency, horsepower, and acceleration while providing superior filtration to protect engines from harmful contaminants. K&N’s air filters are washable, reusable, and built to last, offering a cost-effective alternative to disposable filters. With over 50 years of innovation and a reputation for quality, K&N is trusted by car enthusiasts, racers, and everyday drivers for both street and off-road applications.

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-49%
MBRP Universal 3.5 ID to 5 OD Adapter Aluminized - eliteracefab.com
MBRP

MBRP Universal 3.5 ID to 5 OD Adapter Aluminized - UA2003

$83.32 $42.49
-49%
MBRP Universal 4 ID. to 5 ID. Adapter Aluminized - eliteracefab.com
MBRP

MBRP Universal 4 ID. to 5 ID. Adapter Aluminized - UA2004

$66.65 $33.99
-17%
JBA 1650ST | 2.5IN STAINLESS STEEL 1650 STARTER TUBES - eliteracefab.com
JBA

JBA 1650ST

$68.70 $56.52
-49%
MBRP Universal 4 ID. to 5OD. Adapter Aluminized - eliteracefab.com
MBRP

MBRP Universal 4 ID. to 5OD. Adapter Aluminized - UA2001

$66.65 $33.99
-49%
MBRP Universal 3.5 OD. to 5ID. Adapter Aluminized - eliteracefab.com
MBRP

MBRP UA2005 Exhaust Pipe Adapter 3.5" OD To 5" ID Adapter Aluminized Steel

$83.32 $42.49
-32%
Stainless Bros 3.5in x 6in OAL 304SS Flex Joint w/ Interlock Liner - eliteracefab.com
Stainless Bros

Stainless Bros 3.5in x 6in OAL 304SS Flex Joint w/ Interlock Liner

$65.95 $44.19
-9%
Granatelli 2.5in 304SS Turn Down w/3-Bolt Flange & Gaskets (Pair)
Granatelli Motor Sports

Granatelli 2.5in 304SS Turn Down w/3-Bolt Flange & Gaskets (Pair)

$51.45 $46.55
-34%
T304 3
BLOX Racing

T304 3" REDUCER - 02+ SUBARU WRX / STI

$55.00 $36.03
K&N Bombardier/Can AM Outlander 650/800 Replacement Air FIlter Quick View
K&N Engineering

K&N Bombardier/Can AM Outlander 650/800 Replacement Air FIlter

$63.99
KNNBD-6506
Air Filters Air Filters - Direct Fit Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude....
K&N 2005 John Deere Bombardier 02-05 Replacement Air FIlter Quick View
K&N Engineering

K&N 2005 John Deere Bombardier 02-05 Replacement Air FIlter

$63.99
KNNBD-6502
Air Filters Air Filters - Drop In Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude....
K&N Bombardier/Can AM/Honda 450/644/650 Universal Replacement Tapered Conical Air Filter Quick View
K&N Engineering

K&N Bombardier/Can AM/Honda 450/644/650 Universal Replacement Tapered Conical Air Filter

$51.99
KNNBD-6500
Air Filters Air Filters - Drop In Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude....
K&N 2017 Bajaj Dominar 400 Replacement Air Filter Quick View
K&N Engineering

K&N 2017 Bajaj Dominar 400 Replacement Air Filter

$39.99
KNNBA-3717
Air Filters Air Filters - Direct Fit Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific...
K&N 06-11 Bajaj Pulsar Replacement Air FIlter Quick View
K&N Engineering

K&N 06-11 Bajaj Pulsar Replacement Air FIlter

$39.99
KNNBA-2201
Air Filters Air Filters - Direct Fit Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific...
K&N 12-14 BAJAJ PULSAR 200NS 199 Drop In Air Filter Quick View
K&N Engineering

K&N 12-14 BAJAJ PULSAR 200NS 199 Drop In Air Filter

$39.99
KNNBA-2012
Air Filters Air Filters - Direct Fit Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific...
K&N 15-16 Aprilia RSV4 Factory 1000 Drop In Air Filter Quick View
K&N Engineering

K&N 15-16 Aprilia RSV4 Factory 1000 Drop In Air Filter

$63.99
KNNAL-1015
Air Filters Air Filters - Direct Fit Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific...
K&N 09-11 Aprilia RSV4 R 1000 Replacement Air Filter Quick View
K&N Engineering

K&N 09-11 Aprilia RSV4 R 1000 Replacement Air Filter

$47.99
KNNAL-1010
Air Filters Air Filters - Direct Fit Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific...
K&N Replacement Air Filter Aprilia RSV Mille 04/RSV 1000-05-09 Quick View
K&N Engineering

K&N Replacement Air Filter Aprilia RSV Mille 04/RSV 1000-05-09

$63.99
KNNAL-1004
Air Filters Air Filters - Direct Fit Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific...
K&N Replacement Air Filter 00-03 Aprilia RSV Mille/03 Tuono FIghter/04-05 RSV Tuono Quick View
K&N Engineering

K&N Replacement Air Filter 00-03 Aprilia RSV Mille/03 Tuono FIghter/04-05 RSV Tuono

$63.99
KNNAL-1001
Air Filters Air Filters - Direct Fit Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific...
K&N Replacement Air Filter for 19-23 Arctic Cat Prowler Pro 812 Quick View
K&N Engineering

K&N Replacement Air Filter for 19-23 Arctic Cat Prowler Pro 812

$71.99
KNNAC-8119
Air Filters Air Filters - Drop In Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude....
K&N Replacement Air Filter - 10.625in O/S L x 7.625in O/S W x .688in H for Arctic Cat Quick View
K&N Engineering

K&N Replacement Air Filter - 10.625in O/S L x 7.625in O/S W x .688in H for Arctic Cat

$71.99
KNNAC-7009
Air Filters Air Filters - Drop In Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude....
K&N 2015 Arctic Cat XR500 Replacement Air Filter Quick View
K&N Engineering

K&N 2015 Arctic Cat XR500 Replacement Air Filter

$63.99
KNNAC-5015
Air Filters Air Filters - Drop In Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude....
K&N 96-06 Arctic Cat 400/454/500 Replacement Air Filter Quick View
K&N Engineering

K&N 96-06 Arctic Cat 400/454/500 Replacement Air Filter

$51.99
KNNAC-4096-1
Air Filters Air Filters - Drop In Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude....
K&N Arctic Cat 12.813in O/S L x 7.5in O/S W x .875in H Replacement Air Filter Quick View
K&N Engineering

K&N Arctic Cat 12.813in O/S L x 7.5in O/S W x .875in H Replacement Air Filter

$63.99
KNNAC-4004
Air Filters Air Filters - Drop In Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude....
K&N 12-13 Arctic Cat Wildcat 1000 Air Filter Wrap, Black Quick View
K&N Engineering

K&N 12-13 Arctic Cat Wildcat 1000 Air Filter Wrap, Black

$24.99
KNNAC-1012DK
Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Pre-Filters save$$ Trick-Or-Treat
The K&N Drycharger is a silicone treated, polyester wrap that is made to cover K&N Air Filters or Personal Watercraft Flame Arrestors. These Drychargers,...
K&N 12-13 Arctic Cat Wildcat 1000 Replacement filter Quick View
K&N Engineering

K&N 12-13 Arctic Cat Wildcat 1000 Replacement filter

$71.99
KNNAC-1012
Air Filters Air Filters - Drop In Air Intake System All All Air Filters Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude....
K&N HVAC Filter Cleaner Quick View
K&N Engineering

K&N HVAC Filter Cleaner

$21.99
KNN99-6010
Air Filter Oils & Cleaners Air Filters Black Friday 2024 HVAC Filters K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N part 99-6010 is a 32 ounce pump spray bottle of HVAC Filter Cleaner. K&N HVAC Filter Cleaner is the only cleaner recommended to...
K&N Cabin Filter Cleaning Kit Quick View
K&N Engineering

K&N Cabin Filter Cleaning Kit

$21.99
KNN99-6000
Air Filter Oils & Cleaners Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N's Refresher kit for washable cabin air filters comes with a 12 ounce pump spray bottle of cabin filter cleaner, an 8 ounce pump...
K&N Filter Cleaning Kit - Squeeze Blue Quick View
K&N Engineering

K&N Filter Cleaning Kit - Squeeze Blue

$21.99
KNN99-5050BL
Air Filter Oils & Cleaners Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N Recharger Kit 99-5050BL is designed for cleaning your K&N oiled cotton air filter when it is time to be serviced. The kit comes...
K&N Filter Cleaning Kit - Squeeze Black Quick View
K&N Engineering

K&N Filter Cleaning Kit - Squeeze Black

$21.99
KNN99-5050BK
Air Filter Oils & Cleaners Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N Recharger Kit 99-5050BK is designed for cleaning your K&N oiled cotton air filter when it is time to be serviced. The kit comes...
K&N Filter Cleaning Kit Quick View
K&N Engineering

K&N Filter Cleaning Kit

$17.99
KNN99-5050
Air Filter Oils & Cleaners Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N Recharger Kit 99-5050 is designed for cleaning your K&N oiled cotton air filter when it is time to be serviced. The kit comes...
K&N Aerosol Oil Recharger Service Kit Quick View
K&N Engineering

K&N Aerosol Oil Recharger Service Kit

$21.99
KNN99-5000
Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N Recharger Kit 99-5000 is designed to restore the performance of your K&N oiled cotton air filter, and includes a 6.5-ounce aerosol can of...
K&N Octane Booster 16oz Quick View
K&N Engineering

K&N Octane Booster 16oz

$9.99
KNN99-2020
Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N Octane Booster 16ozMaterial Safety Data Sheet
K&N Sealing Grease - 6 oz Quick View
K&N Engineering

K&N Sealing Grease - 6 oz

$21.99
KNN99-0704
Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N Sealing Grease 99-0704 provides an airtight fit around sealing surfaces on all types of air filter elements. It resists heat and will not...
K&N Sealing Grease - 1 oz Quick View
K&N Engineering

K&N Sealing Grease - 1 oz

$8.49
KNN99-0703-1
Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N Sealing Grease 99-0703-1 provides an airtight fit around sealing surfaces on all types of air filter elements. It resists heat and will not...
K&N 1 Gallon Heavy Duty DryFlow Cleaner Quick View
K&N Engineering

K&N 1 Gallon Heavy Duty DryFlow Cleaner

$37.99
KNN99-0638
Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N 99-0638 is a 1 US gallon container of K&N Heavy Duty Air Filter Cleaner. It is the only cleaner recommended for cleaning heavy...
K&N Power Kleen Air Filter Cleaner (1 gallon) Quick View
K&N Engineering

K&N Power Kleen Air Filter Cleaner (1 gallon)

$37.99
KNN99-0635
Air Filter Oils & Cleaners Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N 99-0635 is a 1 US gallon bottle of Power Kleen air filter cleaner. K&N Air Filter Cleaner is the only cleaner recommended to...
K&N Synthetic Air Filter Cleaner Quick View
K&N Engineering

K&N Synthetic Air Filter Cleaner

$18.99
KNN99-0624
Air Filter Oils & Cleaners Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N 99-0624 is a 32 ounce spray bottle of K&N Synthetic Air Filter Cleaner. The 99-0624 air filter cleaner will bring your K&N synthetic...
K&N 32 oz. Trigger Sprayer Filter Cleaner Quick View
K&N Engineering

K&N 32 oz. Trigger Sprayer Filter Cleaner

$17.99
KNN99-0621
Air Filter Oils & Cleaners Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N part 99-0621 is a 32 ounce pump spray bottle of Power Kleen Air Filter Cleaner. K&N Power Kleen is the only cleaner recommended...
K&N Air Filter Cleaner 12oz Pump Spray Quick View
K&N Engineering

K&N Air Filter Cleaner 12oz Pump Spray

$10.49
KNN99-0606
Air Filter Oils & Cleaners Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N Air Filter Cleaner is the only cleaner recommended to clean K&N cotton air filter elements. The 99-0606 Air Filter Cleaner will bring your...
K&N 5 Gallon Air Filter Oil Quick View
K&N Engineering

K&N 5 Gallon Air Filter Oil

$199.99
KNN99-0555
Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N 99-0555 is a 5 US gallon container of air filter oil. K&N Air Filter Oil is the only oil specially formulated to work...
K&N 1 Gallon Air Filter Oil Quick View
K&N Engineering

K&N 1 Gallon Air Filter Oil

$37.99
KNN99-0551
Air Intake Systems Black Friday 2024 K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more Recharge Kits save$$ Trick-Or-Treat
K&N 99-0551 is a 1 US gallon container of air filter oil. K&N Air Filter Oil is the only oil specially formulated to work...
Sold out
K&N 03-08 Bombardier Outlander 330/400 Drop In Air Filter Quick View
K&N Engineering

K&N 03-08 Bombardier Outlander 330/400 Drop In Air Filter

$63.99
KNNBD-3303
Air Filters Air Filters - Direct Fit Air Intake System All All Air Filters K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude....
Sold out
K&N 04-06 Arctic Cat 650 1 inch H Replacement Air Filter Quick View
K&N Engineering

K&N 04-06 Arctic Cat 650 1 inch H Replacement Air Filter

$51.99
KNNAC-6504
Air Filters Air Filters - Drop In Air Intake System All All Air Filters K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude....
Sold out
K&N Apollo Universal Parts Kit Quick View
K&N Engineering

K&N Apollo Universal Parts Kit

$19.99
KNNA2053-RC5052
Air Intake Components Air Intake System All Air Intake Systems K&N Engineering - Air Intake System, Air Filters, Oil Filers, and more save$$ Trick-Or-Treat
Vent tubes can be used to attach smog tubes, crank case ventilation tubes or other vacuum related accessories. Requires creating 1/4 inch NPT threaded...

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K&N Engineering

K&N Engineering is a premier manufacturer of high-performance automotive filtration products, specializing in air filters, cold air intake systems, and oil filters. With over 50 years of experience, K&N is renowned for its innovative designs that improve airflow and enhance engine performance while providing superior filtration. Their air filters are washable, reusable, and engineered to deliver increased horsepower and torque, making them a popular choice for car enthusiasts and everyday drivers alike. K&N’s commitment to quality and performance is evident in their extensive product lineup, which caters to a wide range of vehicles, including cars, trucks, motorcycles, and more. Trust K&N to help you maximize your engine’s potential while ensuring long-lasting protection against harmful contaminants.

What are K&N air filters?

K&N air filters are high-flow, reusable filters designed to improve airflow to your engine while providing superior filtration. They are washable and made to last, enhancing engine performance and efficiency.

How do K&N cold air intake systems work?

K&N cold air intake systems replace your vehicle's factory air intake, allowing for increased airflow to the engine. This improves combustion efficiency, leading to enhanced horsepower, torque, and acceleration.

Can K&N filters fit any vehicle?

K&N offers a wide range of filters and intake systems that fit various makes and models, including cars, trucks, and motorcycles. Check K&N's website or consult the product catalog for specific fitment information.

Are K&N products environmentally friendly?

Yes, K&N filters are designed to be reused and cleaned, reducing waste compared to disposable filters. Additionally, their efficient filtration can help improve fuel economy, which can reduce emissions.

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