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For over a decade Injen Technology Co. Ltd and their sister company has played a major roll in the design and development of air intake systems. Injen Technology is based out of California in the same city and just a few miles away from the famous Pomona Winter Nationals Top Fuel Raceway. Injen Technology's history is a classic success story of a small manufacturing company turned industry leader of aftermarket performance products. April 2008, Injen launched the companies latest product line; the Diesel Power-Flow .  Once again Injen set new industry standards by incorporating the first Power-On-Demand air intake system with Vi Technology and with a removable stainless steel Pre-Filter.
Injen EVO3001 Evolution Air Induction System 80428 13.00 Injen EVO3001 Evolution Air Induction System
$ 379.95
The Injen EVO3001 Evolution Air Induction System is the most advanced intake available for your 2015-2016 Volkswagen MK7 Golf 2.0L TDI. This air induction system features tough cross-linked high-density Roto-Molded Polyethylene construction of the intake tube and air filter housing to minimize heat soak and for a custom fit. With an integrated and functional front ram air system and boost plenum molded in the air filter box, this intake grabs the most amount of air possible. The Injen EVO3001 Evolution Air Induction System offers dyno proven gains of 5 HP and 7 TQ and a more aggressive engine inside the vehicle. This intake includes the fully serviceable Injen SuperNano-Web dry air filter that will increase flow while out-filtering your stock air filter. With reinforced grade silicone coupler, stainless steel band clamps with an inner protective liner, all the hardware needed for installation, this intake is a cinch to mount into your vehicle as no drilling or cutting is required. Peace of mind is included as the lifetime warranty means this intake will last the life of your car.Features:Made In The USA Up To 5 HP and 7 Lb-Ft Torque 6061-T6 Aluminum Intake Tubing Washable Injen SuperNano-Web Dry Air FilterRoto-Molded Polyethylene Housing and Intake TubeStainless Steel Band Clamps With Protective Inner LinerIntake Scoop Is Designed To Capture The Largest Amount Of Cool AirLimited Lifetime Warranty
Injen EVO7000 Evolution Air Induction System 24755 14.00 Injen EVO7000 Evolution Air Induction System
$ 299.95
The Injen EVO7000 Evolution Air Induction System for your 2001-2004 GM 6.6L Duramax LB7 is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks
Injen EVO7001 Evolution Air Induction System 24756 14.00 Injen EVO7001 Evolution Air Induction System
$ 299.95
The Injen EVO7001 Evolution Air Induction System for your 2004.5-2005 GM 6.6L Duramax LLY is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks
Injen EVO7002 Evolution Air Induction System 24757 14.00 Injen EVO7002 Evolution Air Induction System
$ 299.95
The Injen EVO7002 Evolution Air Induction System for your 2006-2007 GM 6.6L Duramax LLY/LBZ is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder +30.3 HP and 62 Ft-Lbs "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks
Injen EVO7003 Evolution Air Induction System 24758 14.00 Injen EVO7003 Evolution Air Induction System
$ 299.95
The Injen EVO7003 Evolution Air Induction System for your 2007.5-2010 GM 6.6L Duramax LMM is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder +30.3 HP and 75 Ft-lbs. "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks
Injen EVO7004 Evolution Air Induction System 24759 14.00 Injen EVO7004 Evolution Air Induction System
$ 299.95
The Injen EVO7004 Evolution Air Induction System for your 2011-2012 GM 6.6L Duramax LML is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder +34.9 HP and 80.33 Ft-lbs. "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks Fitment Note: This intake system is for 2011-2012 LML Duramax Trucks with a single MAF Sensor.
Injen EVO7005 Evolution Air Induction System 24898 14.00 Injen EVO7005 Evolution Air Induction System
$ 299.95
The Injen EVO7005 Evolution Air Induction System for your 2013-2014 GM 6.6L Duramax LML is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder +35 HP and 80.33 Ft-lbs. "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks Fitment Note: This intake system is for 2013-2014 LML Duramax Trucks with two MAF Sensors.
Injen EVO7006 Evolution Air Induction System 26795 39.00 Injen EVO7006 Evolution Air Induction System
$ 299.95
The Injen EVO7006 Evolution Air Induction System for your 2015-2016 GM 6.6L Duramax LML is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder +35 HP and 80.33 Ft-lbs. "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks
Injen EVO7007 Evolution Cold Air Induction System (Dry Filter) 35617 13.00 Injen EVO7007 Evolution Cold Air Induction System (Dry Filter)
$ 314.95
Install dyno-proven performance under the hood of your 2017-2018 GM 6.6L Duramax L5P with the Injen EVO7007 Evolution Cold Air Induction System (Dry Filter). Injen's Evolution sealed air intake is designed using state of the art techniques and tooling to produce the highest quality intake system unmatched in the aftermarket. A massive SuperNano-Web Dry Air filter utilizes Injen's Twist-Lock system to allow use of the largest filter possible for the L5P, increasing air volume for more power! The custom designed intake tube produces huge power gains while retaining a quality OE fit. Injen put in the time to test and prove they have one of the best kits available and they are proud to say that the EVO7007 puts down up to 33 HP and 76 Ft.-lbs of torque.Roto-molded Housing:The one-piece sealed housing utilizes the all-new Injen Twist-Lock System to securely attach the SuperNano-Web Dry air filter in place which eliminates the use of unnecessary parts and provides one of the simplest installations available. The EVO7007 housing also sports the all-new Injen Clear-View badge for a cleaner more aggressive underhood appearance.Quality Hardware:From the Stainless Steel Band Clamps with an inner protective liner to the reinforced automotive grade silicone coupler, every aspect is covered for a perfect and secure fit. Hassle-Free Installation:Make it easy! The Injen Evolution Air intakes that use our Twist-Lock System have been strategically designed to use fewer parts to provide the end user with one of the quickest and simplest installations available on the market today.Features:Dry Filter+33 HP and 76 Ft.-lbsReinforced CouplersDirect Bolt-On InstallationDyno-Tuned PerformanceAggressive Under Hood Appearance
Injen EVO7007C Evolution Cold Air Induction System (Oiled Filter) 35618 13.00 Injen EVO7007C Evolution Cold Air Induction System (Oiled Filter)
$ 314.95
Replace the restrictive factory intake system on your 2017-2018 GM 6.6L Duramax L5P with the dyno-proven, high flowing Injen EVO7007C Evolution Cold Air Induction System (Oiled Filter). A massive 8-layer oiled cotton gauze air filter utilizes Injen's Twist-Lock system to allow use of the largest filter possible for the L5P, increasing air volume for more power! Injen's Evolution sealed air intake is designed using state of the art techniques and tooling to produce the highest quality intake system that simply cannot be matched in the aftermarket. Through much time and dyno testing, Injen is proud to say that the EVO7007C provides up to 33 additional horespower and 76 Ft.-lbs. of torque! Roto-molded Intake Tube:The EVO7007 Evolution Air Intake System uses a custom designed and dyno-tuned, intake tube to produce huge power gains while retaining an OE quality fit.Roto-molded Housing:The one-piece sealed housing utilizes the all-new Injen Twist-Lock System to securely attach the SuperNano-Web Dry air filter in place which eliminates the use of unnecessary parts and provides one of the simplest installations available. The EVO7007C housing also sports the all-new Injen Clear-View badge for a cleaner more aggressive underhood appearance.Quality Hardware:From the Stainless Steel Band Clamps with an inner protective liner to the reinforced automotive grade silicone coupler, every aspect is covered for a perfect and secure fit. Hassle-Free Installation:Make it easy! The Injen Evolution Air intakes that use our Twist-Lock System have been strategically designed to use fewer parts to provide the end user with one of the quickest and simplest installations available on the market today.Features:+33 HP and 76 Ft.-lbsReusable Oiled FilterReinforced CouplersDirect Bolt-On InstallationDyno-Tuned PerformanceAggressive Under Hood Appearance
Injen EVO8000 Evolution Air Induction System 24752 13.00 Injen EVO8000 Evolution Air Induction System
5 5 1
$ 299.95
The Injen EVO8000 Evolution Air Induction System for your 2003-2007 Dodge 5.9L Cummins is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder +24.4HP and 61.6 Ft-Lbs. "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks
Injen EVO8001 Evolution Air Induction System 24753 13.00 Injen EVO8001 Evolution Air Induction System
$ 299.95
The Injen EVO8001 Evolution Air Induction System for your 2007.5-2009 Dodge 6.7L Cummins is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder +20.1 HP and 52.3 Ft-Lbs. "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks
Injen EVO8002 Evolution Air Induction System 24754 13.00 Injen EVO8002 Evolution Air Induction System
$ 299.95
The Injen EVO8002 Evolution Air Induction System for your 2010-2012 Dodge 6.7L Cummins is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder +21.9 HP and 65.3 Ft-Lbs. "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks
Injen EVO8003 Evolution Air Induction System 24760 13.00 Injen EVO8003 Evolution Air Induction System
4.667 5 3
$ 329.95
The Injen EVO8003 Evolution Air Induction System for your 2013-2017 Dodge 6.7L Cummins is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. Injen's Induction System seamlessly integrates with your Ram Active Air system and utilizes the OE drive motor already found in your vehicle. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: +23 HP and +65 Ft-lbs Built-In Filter Minder "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks
Injen EVO9002 Evolution Air Induction System 24750 12.00 Injen EVO9002 Evolution Air Induction System
5 5 1
$ 299.95
The Injen EVO9002 Evolution Air Induction System for your 2008-2010 Ford 6.4L Powerstroke is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporate a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder +23 HP and 53 Ft-Lbs. "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks
Injen EVO9003 Evolution Air Induction System 24751 12.00 Injen EVO9003 Evolution Air Induction System
4 5 1
$ 299.95
The Injen EVO9003 Evolution Air Induction System for your 2011-2015 Ford 6.7L Powerstroke is a dyno tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using the latest CAD software, the Rotomolded, cross-linked polyethylene construction allows for outstanding durability and heat insulation while reducing restriction levels for impressive fuel economy gains. The Evolution Air Induction Systems incorporates a massive SuperNano Web Dry Air Filter with a built-in Filter Minder for quick and easy filter inspections without disassembling your intake system. Made with pride in the U.S.A, the Evolution Air Induction System comes ready-to-install and simply bolts in place of your factory intake system. Comes complete with stainless steel hardware and automotive grade hose couplers for a hassle-free installation. Features: Built-In Filter Minder+19 HP and 52 Ft-Lbs. "Dry" Oil-Free Filter Media Sleek Lines To Match Underhood Looks
Injen PF5014 PF Cold Air Intake System 80427 9.00 Injen PF5014 PF Cold Air Intake System
$ 292.75
The Injen PF5014 PF Cold Air Intake System will add horsepower while improving the under-hood appearance of your 2014-2016 Grand Cherokee 3.0L EcoDiesel. This intake comes with a 6061-T6 aluminum intake tubing and features a polished or black wrinkle powder coated intake tube to match your unique style. Dyno proven gains of 11 HP and 15 TQ and a more aggressive engine tone means this intake will perform as well as it looks.This PF5014 PF Cold Air Intake System includes the Injen SuperNano-Web dry air filter that out-flows and out-filters your stock air filter and is fully serviceable. This American made cold air intake comes everything you need for installation and includes a lifetime warranty. Features:Made In The USA Up To 11 HP and 15 Lb-Ft Torque 6061-T6 Aluminum Intake Tubing Washable Injen SuperNano-Web Dry Air FilterAvailable In Polished Or Black Wrinkle Powder Coat FinishLimited Lifetime Warranty
Injen PF8054 Air Intake System 29563 12.00 Injen PF8054 Air Intake System
$ 224.2
The Injen PF8054 Air Intake System for your 2014-2017 Ram 1500 3.0L EcoDiesel increases power, and performance on your EcoDiesel Pickup. Featuring the patented MR Technology and Air Fusion Process for tuning, this intake has been designed to provide the best flow and dyno proven to increase power. Built with a mandrel-bent 6061-T6 aluminum induction tube and a stainless steel band clamps, this intake feeds your engine with cool, cold air filtered through a 3.5" SuperNano-Web Dry Air Filter. Features: +12 HP and +22 Ft-Lbs. Patented MR Technology 3.5" SuperNano-Web Dry Air Filter Mandrel Bent 6061-T6 Aluminum Induction Tube
Injen PF8074 PF Cold Air Intake System 80434 15.00 Injen PF8074 PF Cold Air Intake System
$ 322.61
The Injen PF8074 PF Cold Air Intake System is the perfect addition to your stock or modified 1994-2002 Dodge 5.9L Cummins. This intake includes with a 6061-T6 aluminum intake tube and features a wrinkle black powder coated or polished aluminum intake tube to make your engine bay stand out. With dyno tested gains of 15 HP and 34 TQ and a more aggressive engine sound means this intake will add power to match its good looks.This Injen PF8074 PF Cold Air Intake System includes the cleanable Injen SuperNano-Web dry air filter that will out-filter your factory while also outflowing the stock air filter. This American made air intake system includes all the hardware you need for installation and comes a lifetime warranty.Features:Made In The USA Short Ram Air Intake Up To 15 HP and 34 Lb-Ft Torque Smooth 6061-T6 Aluminum Intake Tubing Washable Injen SuperNano-Web Dry Air FilterAvailable In Polished Or Black Powder Coat FinishHeat Shield With Cover Specifically Designed For Application
Injen Power-Flow Air Intake System PF9031 5648 20.00 Injen Power-Flow Air Intake System PF9031
$ 336.96
The engineered weapon of choice with a touch of class! Injen Technology continues to remain on the cutting edge with the invention of the first functional composite airbox, ViT valve, air plenum and stainless steel pre-filter screen. The power on demand generated from this explosive combination will satisfy anyones thirst for speed and power with up to an additional +11.6hp and 28ft-lbs of torque. Key Features: MR Technology (Tunes intake to factory Air/Fuel Ratios) Web Nano-Fiber Dry Filter Reusable Mandrel-Bent Prime Aluminum Alloy Hand Crafted in the U.S.A Injen/AMSOIL Ea Air Filters represent a major breakthrough in filtration technology. The revolutionary nanofiber technology used in Injen/AMSOIL Ea Filters captures more dirt, holds more dirt and allows better air flow than conventional air filters. Injen/AMSOIL Ea Filters improve engine performance and help engines last longer. Absolute Efficiency Injen/AMSOIL Ea Air Filters are the most efficient filters available to the Diesel truck market. Ea Air Filters synthetic nanofiber media removes 5 times more dust than traditional cellulose filter media alone and 50 times more dust than wet gauze filter media. Injen/AMSOIL Ea Air Filters have a service life of 100,000 miles or four years, whichever comes first. Better Air Flow Injen/AMSOIL Ea Air Filters allow more airflow than filters that use cellulose media alone. Cellulose fibers are larger than nanofibers, and have larger spaces between the fibers, causing contaminants to load in the depth of the media and plug the airflow path, which results in higher restriction and less capacity. The synthetic nanofibers in EaA Filter media have submicron diameters and small interfiber spaces, which result in more contaminants being captured on the surface of the media and lower restriction. More Capacity Injen/AMSOIL Ea Air Filters hold up to two and a half times more contaminants than cellulose air filters. Since the nanofibers in the media are so small there are more pores per square inch, allowing for higher dirt-holding capacity and lower pressure drop when compared to cellulose filter media alone. Thinner media fibers produce more uniform pore size distribution, improving the filters overall quality and ability to capture and retain particles. Testing shows that Ea Air Filters hold 15 times more contaminants than a wet gauze type filter. Cleanable - Longer Life When cleaned according to Injen/AMSOIL specifications and used in normal service, Injen/AMSOIL Ea Air Filters are guaranteed for 100,000 miles or four years, whichever comes first. EaA Filters remain effective for 25,000 miles or one year before requiring cleaning. This coincides with the Injen/AMSOIL 25,000-mile/one-year motor oil drain interval, adding even more convenience for motorists by consolidating routine maintenance. (See below for cleaning instructions.) Cleaning EaA filters should be cleaned every year or 25,000 miles, whichever comes first. Carefully remove the filter from the housing. Clean the housing with a shop towel, being careful not to knock contaminants into the air inlet. Service Life Injen/AMSOIL Ea Air Filters are guaranteed for four years or 100,000 miles, whichever comes first. The guarantee applies only if the filter has been serviced according to Injen/AMSOIL recommendations. In off-road, frequently dusty or other severe duty applications, clean and change more often as determined by operating conditions or as indicated by restriction gauge.