2004 Subaru WRX Air Intake
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K&N®33 Series Panel Red Air FilterSubaru WRX / WRX STI Base 2004, 33 Series Panel Red Air Filter by K&N®. K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. K&N makes over 1,200 different replacement...Designed to boost horsepower and rate of accelerationCan be cleaned and used again$54.99 - Takeda®Retain Stage 2 Aluminum Polished Short Ram Air Intake System with Pro Dry S Gray FilterSubaru WRX 2004, Retain Stage 2 Aluminum Polished Short Ram Air Intake System with Pro Dry S Filter by Takeda®. Improve your car's performance and enhance the appearance of your engine bay with the Takeda Retain Short Ram Air Intake...$346.00
- ACDelco®Gold™ Rectangular Air FilterSubaru WRX 2004, Gold™ Rectangular Air Filter by ACDelco®. Make sure your engine breathes properly with our selection of top-quality replacement air intake parts. These parts are made by trusted brands that use the finest materials...Perfect solution to keep your air intake system performing the way it was designed toCrafted from the highest grade materials for dependable, long-lasting service$10.85
- Injen®IS Series Short Ram Air Intake System with Blue FilterSubaru WRX 2004, IS Series Short Ram Air 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...$244.95
- K&N®69 Series Typhoon® Aluminum Cold Air Intake System with Red FilterSubaru WRX / WRX STI Base 2004, 69 Series Typhoon® Aluminum Cold Air Intake System by K&N®. Dominate the street or the track with this superior high-performance air filter designed to bump up horsepower, performance and acceleration to...Guaranteed to increase horsepower and improve accelerationCustom designed and engineered for each application$399.99
- AEM Intakes®Aluminum Cold Air Intake System with Red FilterSubaru WRX 2004, Aluminum Cold Air Intake System by AEM Intakes®. To deliver cooler air to the engine, this air intake system places the air filter outside the engine compartment. Cooler air is denser than warm air and so contains more...Delivers more oxygen to the combustion chamber by drawing in cooler airCustom designed and engineered to deliver maximum power for each specific vehicle$349.99 - $399.99
- WIX®Panel Air FilterSubaru WRX 2004, Panel Air Filter by WIX®. Make sure your engine breathes properly with our selection of top-quality replacement air intake parts. These parts are made by trusted brands that use the finest materials and the latest...Perfect solution to keep your air intake system performing the way it was designed toCrafted from the highest grade materials for dependable, long-lasting service$13.34
- Denso®Rectangular Air FilterSubaru WRX 2004, Rectangular Air Filter by Denso®. Make sure your engine breathes properly with our selection of top-quality replacement air intake parts. These parts are made by trusted brands that use the finest materials and the...Perfect solution to keep your air intake system performing the way it was designed toCrafted from the highest grade materials for dependable, long-lasting service$5.85
- aFe®Magnum Flow® Pro 5R Panel Blue Air FilterSubaru WRX Base 2004, Magnum Flow® Pro 5R Panel Blue Air Filter by aFe®. Constructed with 100% polyurethane on all four sides, this high-flow, oiled OE replacement performance filter will outflow the stock paper filter for improved...Pro 5R Factory-Oiled Media for Maximum Performance100% Polyurethane Frame On All Sides For Extra Long Filter Life$84.00
- aFe®Magnum Flow® Pro Dry S Panel Gray Air FilterSubaru WRX Base 2004, Magnum Flow® Pro Dry S Panel Gray Air Filter by aFe®. Constructed with 100% polyurethane on all sides, this high-flow, oiled OE replacement performance filter will outflow the stock filter for improved horsepower...Oil-Free, Pro DRY S 3-Layer Progressive Porosity Synthetic Media for maximum convenience100% Polyurethane Frame On All Sides For Extra Long Filter Life$84.00
- FRAM®Extra Guard™ Flexible Panel Rectangular Air FilterSubaru WRX 2004, Extra Guard™ Flexible Panel Rectangular Air Filter by FRAM®. Designed and constructed with advanced features to capture and hold more dirt. Increased durability is achieved because of the heavier filter screen that...Provides better air filtration for improved performancePrevents damaging particles from entering your engine$7.94
- MANN-Filter®Air FilterSubaru WRX 2004, Air Filter by MANN-Filter®. Get excellent engine protection and more economical operation just by replacing your air filter. This MANN air filter is specially designed for your vehicle to ensure a precise fit and proper...Optimum protection for the engine, airflow meters and other sensorsPerfectly adapted in form and function to your vehicle$26.29
- Beck Arnley®Panel Air FilterSubaru WRX 2004, Panel Air Filter by Beck Arnley®. Position: Primary. When investing in this superior product by Beck Arnley, expect to get the exact OEM look, function, and fit. The product was developed to stringent factory...Insures proper air flow for engine operationConstructed from OE quality materials and filter media to properly maintain your vehicle and improve gas mileage$8.63
- Mahle®Air FilterSubaru WRX / WRX STI 2004, Air Filter by Mahle®. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local auto parts chain store for a replacement, but before you waste...Perfect solution to keep your air intake system performing the way it was designed toCrafted from the highest grade materials for dependable, long-lasting service$11.55
- Injen®RD Series Cold Air Intake System with Blue FilterSubaru WRX 2004, 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...$374.95
- Pentius®UltraFLOW™ Air FilterSubaru WRX STI 2.5L 2004, UltraFLOW™ Air Filter by Pentius®. The UltraFLOW Air Filter by Pentius has been designed to provide your customer's engine with the clean air that is required for maximum efficiency and power output. By...Designed to eliminate contaminantsEnsures proper fitment and excellent performance$3.92
- AEM Intakes®Aluminum Short Ram Air Intake System with Red FilterSubaru WRX / WRX STI Base 2004, Aluminum Short Ram Air Intake System by AEM Intakes®. Make your engine function at its full efficiency by choosing from our comprehensive selection of top-grade performance air intake parts. Crafted by...Delivers increased performance for less costEasily installs under the hood$299.99 - $349.99
- PERRIN Performance®Short Ram Air Intake System with Black FilterSubaru WRX 2004, Short Ram Air Intake System by PERRIN Performance®. Increase horsepower and style under your hood. The PERRIN Performance intake system uses proper MAF alignment and plumbing size, which are crucial to maintain proper...Precision CNC construction for perfect fitThroaty deep tone sound$252.45
- TurboXS®Short Ram Air Intake SystemSubaru WRX / WRX STI Base 2004, Short Ram Air Intake System by TurboXS®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...The finest quality at a great priceWe carry everything needed to complete the job$161.10
- Spectre Performance®HPR® Panel Red Air FilterSubaru WRX / WRX STI 2.0L 2004, HPR® Panel Red Air Filter by Spectre Performance®. Spectre’s High Performance Replacement Air Filters are engineered to outperform ordinary paper filters by providing increased air flow for improved...High performance and high air flow filterFactory pre-oiled and ready to use$34.99
- Baldwin Filters®Air Filter ElementSubaru WRX / WRX STI 2.0L 2004, Air Filter Element by Baldwin Filters®. This first-rate American-made product is the winning choice for performance-minded racers. Made with craftsmanship and high-tech machinery by highly skilled...Heavy-Duty Radial Seal Gasket and End Cap will not degrade under temperature extremes, changes in restriction or vibrationFlexible Outer Edges makes for easy installation and removal in housings with minimal clearance$13.21
- Luber-finer®Rigid Panel Air FilterSubaru WRX 2004, Rigid Panel Air Filter by Luber-finer®. Make sure your engine breathes properly with their selection of top-quality replacement air intake parts. These parts are made by trusted brands that use the finest materials and...Remove 99.9% of airborne contaminantsMeet form, fit and function characteristics for the application$5.10
- PERRIN Performance®Panel Black Air FilterSubaru WRX 2004, Panel Black Air Filter by PERRIN Performance®. Don’t let a restrictive OEM paper filter get between you and true performance. The PERRIN Performance™ drop-in Panel Filter is the answer for more horsepower. A...Open cell foam elementCleaner for efficient and trouble-free cleanup$56.95
- Denso®Mass Air Flow SensorSubaru WRX 2004, Mass Air Flow Sensor by Denso®. Make sure your engine breathes properly with our selection of top-quality replacement air intake parts. These parts are made by trusted brands that use the finest materials and the latest...Perfect solution to keep your air intake system performing the way it was designed toCrafted from the highest grade materials for dependable, long-lasting service$118.03
- Cardone Reman®Mass Air Flow SensorSubaru WRX / WRX STI 2004, Mass Air Flow Sensor by Cardone Reman®. Cardone Reman Engineered (CSE) Technology ensures that all MAF sensors meet or exceed O.E. form, fit and function. The sensors precisely track O.E. output curves and...On-car vehicle validation routines ensure that modules meet all form, fit, durability and performance requirements100% re-solder of critical components ensures superior electrical connections, no intermittent failures and longer product life$85.37
- SKP®Mass Air Flow SensorSubaru WRX 2004, Mass Air Flow Sensor by SKP®. Quantity: 1 Piece. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Precise engineering ensures second to none quality and lasting valueStringently tested with the highest quality standards$27.13
- Fel-Pro®Intake Manifold GasketSubaru WRX 2004, Upper Intake Manifold Gasket by Fel-Pro®. Position: Upper. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering...Direct OEM replacement for a proper fitEnsures reliable sealing performance$35.63
- Walker Products®Mass Air Flow SensorSubaru WRX 2004, Mass Air Flow Sensor by Walker Products®. Make sure your engine breathes properly with our selection of top-quality replacement air intake parts. These parts are made by trusted brands that use the finest materials and...Perfect solution to keep your air intake system performing the way it was designed toCrafted from the highest grade materials for dependable, long-lasting service$53.87
- Mahle®Intake Manifold GasketSubaru WRX 2004, Intake Manifold Gasket by Mahle®. Make sure your engine breathes properly with their selection of top-quality replacement air intake parts. These parts are made by trusted brands that use the finest materials and the...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.57 - $54.46
- Delphi®Mass Air Flow SensorSubaru WRX 2004, Mass Air Flow Sensor by Delphi®. When it comes to MAF sensors, communication with the ECM is key. That’s why Delphi MAF sensors use all new parts - never remanufactured parts that could harbor debris and therefore...Extensive coverageManufactured to meet or exceed OE requirements and testing$132.19
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