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    • (115 reviews)
      # sp74
      IS Series Intake System by Injen®. The IS Series is a traditional, underhood air intake system that takes the place of your factory airbox and air filter, and the factory air intake tube. The EA Nanofiber air filter allows increased...
      Improves airflow into the engineIncreases horsepower
      $147.74 - $295.77
    • (46 reviews)
      # sp80
      Exhaust System by Injen®. The perfect complement to your Injen air intake system is an Injen performance exhaust system. Each exhaust system is dyno-tuned together with the air intake system to achieve maximum horsepower and torque...
      $345.79 - $1,599.85
    • (36 reviews)
      # sp76
      RD Series Cold Air Intake System by Injen®. The RD Series is made for the enthusiast who wants improved mid-range power. This cold air system positions a high-flow air filter behind the bumper, where it can take in cooler, denser air....
      Delivers more oxygen to the combustion chamber by drawing in cooler airCustom designed and engineered to deliver maximum power for each specific vehicle
      +1
      $232.92 - $296.19
    • (241 reviews)
      # sp77
      SP Series Cold Air Intake System by Injen®. The SP Series Cold Air Intake System is made for the enthusiast who wants maximum horsepower from a tuned cold air intake system. This cold air system positions a high-flow air filter behind...
      Delivers more oxygen to the combustion chamber by drawing in cooler airUses the patented MR Technology tuning process to ensure the air/fuel ratio is within optimum limits
      +1
      $169.20 - $540.00
    • (0 reviews)
      # sp4153
      Intercooler Kit by Injen®. This kit replaces the small, stock top-mount intercooler with a much larger front-mount intercooler. The increased intercooler volume and front-mount location greatly improves heat transfer, reducing air inlet...
      Reduces inlet air temperature vs. factory intercooler, increasing horsepower and improving performanceAll pipes CNC mandrel bent from 304 grade stainless steel tubing
      $336.84 - $1,469.32
    • (52 reviews)
      # sp17492
      Power-Flow Air Intake System by Injen®. The PF Series Air Intake System is made for high performance cars, trucks and SUVs. It features a larger air filter and a larger diameter air intake tube to meet the airflow demands of the large...
      A large air filter and large diameter air intake tube to maximize air volumeUses the patented MR Technology tuning process to ensure the air/fuel ratio is within optimum limits
      $212.40 - $486.30
    • (2 reviews)
      # sp17491
      PF Series Cold Air Intake System by Injen®. The PF Series Air Intake System is made for high performance cars, trucks and SUVs. It features a larger air filter and a larger diameter air intake tube to meet the airflow demands of the...
      A large air filter and large diameter air intake tube to maximize air volumeUses the patented MR Technology tuning process to ensure the air/fuel ratio is within optimum limits
      $230.40 - $414.00
    • (1 review)
      # sp7425
      Evo Series Cold Air Rotomolded Induction System by Injen®. The Injen Evolution Air Induction System is a dyno-tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck. Designed using...
      Superior quality and an OE style fit for an easy drop-in installationMassive Induction Systems made of durable rotomolded polyethylene
      $299.95 - $899.95
    • (3 reviews)
      # sp63336
      IS Air Intake Extension Pipe by Injen®. Designed utilizing the latest technology, this product by Injen features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet...
      Converts short ram intake system into cold air intake systemDyno-tuned for peak performance
      $160.04 - $203.09
    • (11 reviews)
      # sp17493
      PF Series Short Ram Intake System by Injen®. The PF Series Air Intake System is made for high performance cars, trucks and SUVs. It features a larger air filter and a larger diameter air intake tube to meet the airflow demands of the...
      A large air filter and large diameter air intake tube to maximize air volumeUses the patented MR Technology tuning process to ensure the air/fuel ratio is within optimum limits
      $212.40 - $291.60
    • (205 reviews)
      # sp78
      SP Series Short Ram Intake System by Injen®. The Short Ram SP Series is a traditional, underhood air intake system that takes the place of your factory airbox and air filter, and the factory air intake tube. The EA Nanofiber air filter...
      Improves airflow into the engineUses the patented MR Technology tuning process to ensure the air/fuel ratio is within optimum limits
      +2
      $186.23 - $568.80
    • (1 review)
      # sp4156
      Intercooler Pipes by Injen®. This kit replaces the factory intercooler pipes with high-flowing stainless steel pipes. The kit includes the pipes, hoses, clamps and comprehensive installation instructions.
      All pipes CNC mandrel bent from 304 grade stainless steel tubingIncludes all hoses, couplers, clamps, etc. necessary for installation
      $176.84 - $1,026.89
    • (0 reviews)
      # sp32843
      304 SS Cat-Delete Pipe by Injen®. HP Gain: +3 hp. Torque Gain: +4 lbs. x ft. The perfect complement to your Injen air intake system is an Injen performance exhaust system. Each pipe is dyno-tuned together with the air intake system to...
      Increases horsepower and torqueManufactured from 100% 304 stainless steel
      $222.63
    • (1 review)
      # sp8865
      Strut Bar by Injen®. Injen strut bars are proven to dramatically decrease chassis flex and body roll, particularly for older vehicles that may be wearing out due to high mileage or other usage factors. Injen is internationally known for...
      6061-T6 aluminum- Heat treated for strength and rigidityWithstand torque of up to 42,000 psi (300 MPa) and yield strength of at least 35,000 psi (241 MPa)
      $200.42
    • (0 reviews)
      # sp63334
      Air Filter Adapter Kit by Injen®. Replace your worn out air filter with this high flow air filter. It features a built-in velocity stack for added performance, urethane top and base to resist heat absorption, and oiled cotton gauze for...
      Improves engine airflowIncreases horsepower and acceleration
      $127.76 - $162.00
    • (3 reviews)
      # sp95902
      Exhaust Downpipes by Injen®. The perfect complement to your Injen air intake system is an Injen performance exhaust system. Each exhaust system is dyno-tuned together with the air intake system to achieve maximum horsepower and torque...
      Increases horsepower and torqueManufactured from 100% 304 stainless steel
      $231.84 - $563.68
    • (0 reviews)
      # mpn1574333
      Billet Aluminum Spark Plug Wire Cover by Injen®. Dress up your engine bay and protect your spark plug wires with this highly polished aluminum spark plug wire cover. It's CNC machined for a precision fit and custom appearance, and...
      Custom designed for each applicationMade from billet aluminum
      $81.97
    • (0 reviews)
      # mpn4443261406
      304 SS Muffler Delete Pipe by Injen®. Material: 304 SS. The perfect complement to your Injen air intake system is an Injen performance exhaust system. Each pipe is dyno-tuned together with the air intake system to achieve maximum...
      Increases horsepower and torqueManufactured from 100% 304 stainless steel
      $222.63
    • (0 reviews)
      # mpn4022816363
      Stainless Steel Long Tube Exhaust Header by Injen®. Header Style: Long Tube. Replace your restrictive factory exhaust manifolds with these stainless steel headers and let your engine breath! These headers are easy to install because...
      Increases horsepower and torqueManufactured from 100% 304 stainless steel
      $734.21
    • (0 reviews)
      # mpn4479878086
      Evolution Series Rotomolded Black Cold Air Intake System by Injen®. The Injen Evolution Air Induction System is a dyno-tuned intake system that's designed to enhance air flow for maximum horsepower and torque gains on your truck....
      Fully Enclosed Rotational Molded Induction SystemComes w/Built-In Filter Monitor For Easy Cleaning
      $349.95
    • (5 reviews)
      # mpn4418592031
      Pro-Tech Air Filter Cleaning Kit by Injen®. Keep your Injen cotton gauze High Performance air filter in top shape with the Air Filter Recharge Kit. It includes the 12oz. filter cleaner that loosens and removes dirt particles from the...
      Maintains the life and performance of your high-flow Injen High Performance air filterIncludes filter cleaner and filter oil
      $21.95
    • (25 reviews)
      # 882292197
      High Performance™ Round Tapered Red Air Filter by Injen®. This air filter is a major breakthrough in air filtration technology. It features a revolutionary synthetic nanofiber filter media that increases airflow, while capturing and...
      Revolutionary Nanofiber filter mediaIncreases airflow
      $54.64 - $63.76
    • (34 reviews)
      # 882288190
      SuperNano-Web™ Round Tapered Blue Air Filter by Injen®. This air filter is a major breakthrough in air filtration technology. It features a revolutionary synthetic nanofiber filter media that increases airflow, while capturing and...
      Constructed w/100 Percent Polyurethane on Top and BottomHigh Flow 8 Layer Oiled Cotton Gauzed Air Filter Media
      $59.01 - $75.92
    • (0 reviews)
      # 882324184
      High Performance™ Round Red Air Filter by Injen®. This air filter is a major breakthrough in air filtration technology. It features a revolutionary synthetic nanofiber filter media that increases airflow, while capturing and holding...
      Revolutionary Nanofiber filter mediaIncreases airflow
      $55.21 - $64.95
    • (0 reviews)
      # 882252176
      SuperNano-Web™ Panel Blue Air Filter by Injen®. This air filter is a major breakthrough in air filtration technology. It features a revolutionary synthetic nanofiber filter media that increases airflow, while capturing and holding...
      Revolutionary Nanofiber filter mediaIncreases airflow
      $54.11 - $70.85
    • (0 reviews)
      # 882327136
      SuperNano-Web™ Oval Tapered Blue Air Filter by Injen®. This air filter is a major breakthrough in air filtration technology. It features a revolutionary synthetic nanofiber filter media that increases airflow, while capturing and...
      Revolutionary Nanofiber filter mediaIncreases airflow
      $71.58 - $73.68
    • (0 reviews)
      # 882344159
      SuperNano-Web™ Oval Straight Blue Air Filter by Injen®. This air filter is a major breakthrough in air filtration technology. It features a revolutionary synthetic nanofiber filter media that increases airflow, while capturing and...
      Revolutionary Nanofiber filter mediaIncreases airflow
      $62.65 - $73.68
    • (2 reviews)
      # 882298173
      SuperNano-Web™ Round Straight Blue Air Filter by Injen®. This air filter is a major breakthrough in air filtration technology. It features a revolutionary synthetic nanofiber filter media that increases airflow, while capturing and...
      Revolutionary Nanofiber filter mediaIncreases airflow
      $60.21 - $63.58
    • (10 reviews)
      # 999948392
      Stainless Steel Exhaust Muffler by Injen®. Muffler Sound: Moderate. Muffler Configuration: Center - Center. Let loose all the horsepower locked in your engine by your stock restrictive muffler, and experience the sound of that power...
      $203.68 - $251.05
    • (62 reviews)
      # 761199325
      Hydro-Shield Pre-Filter by Injen®. This accessory for Injen air filters prevents the filter from becoming saturated if splashed by water and mud. When used in dusty conditions it can also extend the filter cleaning interval by filtering...
      Treated to be water repellentProtects the air filter from becoming saturated when splashed
      $20.95 - $24.95




    Injen Technology Co. Ltd is a living example of the American dream. Established in 1998, Injen absorbed all the experience and knowledge of its sister company RD Metal Works. Since the mid 90's, RD Metal Works has been manufacturing top-of-the-line air intake kits for major air filter and air intake manufacturers. To deliver products that are second to none, Injen uses only the most reliable techniques and the most advanced equipment.

    The first air filter was designed by Injen in the faraway 1999. It was a urethane filter with a built-in velocity stack. That simple feature added a lot more to the performance of the filter. And that's how Injen works. They improve on the best down to the last detail. Injen is determined to deliver top-quality performance filters that have no equals when it comes to filtration and airflow efficiency, dust-holding capacity, and service life.

    When a new filter is developed, the engineers calculate its pleat and mesh, ensuring optimum airflow. To make sure each filter offers superb filtration efficiency, Injen uses the finest cotton gauze as the filtering media. To prevent heat soak, the top and base of each Injen air filter are made of urethane. Injen high performance filters are designed to remain effective for 30,000-40,000 miles between cleanings. Best yet. Your Injen filter will serve you long. customers know that for sure.

    It's no secret that some things simply work better. Take for example your exhaust system. An aftermarket exhaust offered by Injen is one of those things that are better, yet we consistently insist on making life complicated. We stick to the original parts, even though the restrictive design of the OEM exhaust will hardly let your vehicle perform to the best. Those who already have an Injen exhaust system know how dramatically it can improve the performance.

    Injen Technology's Super SES exhaust systems are dyno-tuned with their intakes to deliver maximum gains in horsepower and torque. Each SES exhaust system is made from 304 stainless steel to ensure long service life. All the tubing is mandrel bent to make sure the inside diameter remains constant. And don't forget that Injen designs exhaust systems for each specific application so that the fit is just perfect.

    Injen products are no doubt what every driver needs. Whether it is an air filter, or an air intake, or whatever concerning the exhaust system. Injen and its sister company RD Metal Works serve for nothing but the quality, taking into consideration design capabilities, too. Every Injen cold air intake met a strong favor from both American and Canadian customers as producing intakes for trucks, SUVs, and high performance automotive. The “World's First Tuned” and “Power Flow” air intakes were set off and soon accepted by consumers for the most innovative production technologies. New industry standards brought the Injen product lines a number of international awards.

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    Injen Reviews

    Average rating:  4.5  4.7 - 1013 reviews
      /  Read All Injen Reviews
    4.8 of 5
    Like a Boss
    This short ram intake was worth every dollar and I’m using premium gasoline with a catback exhaust. Makes my Mazda rawr!! Don’t strip the screw that tightens the air sensor to the intake. Use YouTube for help, I did the install myself. Injen customer service was good when I requested extra screws. Email them. Thanks. :)
    APosted by Anthony (New York, NY) / May 23, 2018
    2016 Mazda 3
    Was this review helpful for you? Yes
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