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K&N 9" Length Cone Filter / 4" Opening K&N 9" Length Cone Filter / 4" Opening Our price: $47.99 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Buy Now Add to wish list

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K&N A/F Ratio Monitor / Rectangle Display The K&N Air/Fuel Monitor is a precision instrument designed to help performance enthusiasts calibrate an optimum air/fuel mixture ratio. Our price: $185.99 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Buy Now Add to wish list

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K&N A/F Ratio Monitor / Round Display K&N A/F Ratio Monitor / Round Display Our price: $203.99 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Buy Now Add to wish list

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K&N Air Filter (1G DSM) K&N Air Filter (1G DSM) Our price: $43.99 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Buy Now Add to wish list

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K&N Air Filter Cleaning Kit (Aerosol) K&N Recharger kits contain K&N air filter cleaner and air filter oil for recharging any K&N Filtercharger Air Filter. Restores air flow efficiency so your Filtercharger performs like new! Our price: $10.99 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Buy Now Add to wish list

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K&N Air Filter Kit (2G DSM) The K&N Filter Injection Performance Kit comes with everything you need to remove your factory air box and install a full 360-degree open filter on the Mass Airflow Sensor, for huge gains in airflow. The F.I.P.K. comes with a K&N filter, and MAS adapter. Our price: $142.99 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Buy Now Add to wish list

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K&N Crankcase Breather Filter (EVO/DSM) K&N Crankcase Breather Filter (EVO/DSM) Our price: $19.99 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Buy Now Add to wish list

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K&N Drop In Filter 2008+ Subaru WRX & STi K&N Drop In Filter 2008+ Subaru WRX & STi 33-2304 Our price: $39.99 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Buy Now Add to wish list

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K&N Drop-In Air Filter (Hyundai Genesis Coupe) K&N Drop-In Air Filter (Hyundai Genesis Coupe) 33-2958 Our price: $44.99 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Buy Now Add to wish list

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K&N Drop-In Filter (Evo X) (Clearance) K&N Drop-In Filter Mitsubishi Lancer Evolution EVO X 33-2392 Our price: $42.99 Quantity 1 2 3 Buy Now Add to wish list

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K&N Drop-In Filter Mitsubishi Lancer Evolution EVO X K&N Drop-In Filter Mitsubishi Lancer Evolution EVO X 33-2392 Our price: $42.99 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Buy Now Add to wish list

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K&N Filtercharger Air Filter (SRT-4) K&N Filtercharger Air Filter (SRT-4) Our price: $49.99 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Buy Now Add to wish list