-10%
Injen 18-21 Subaru WRX STI H4-2.5L Turbo SP Aluminum Series Cold Air Intake - Wrinkle Red Injen INJSP1208WR
Injen 18-21 Subaru WRX STI H4-2.5L Turbo SP Aluminum Series Cold Air Intake - Wrinkle Red Injen INJSP1208WR
Injen 18-21 Subaru WRX STI H4-2.5L Turbo SP Aluminum Series Cold Air Intake - Wrinkle Red Injen INJSP1208WR
Injen 18-21 Subaru WRX STI H4-2.5L Turbo SP Aluminum Series Cold Air Intake - Wrinkle Red Injen INJSP1208WR
Injen 18-21 Subaru WRX STI H4-2.5L Turbo SP Aluminum Series Cold Air Intake - Wrinkle Red Injen INJSP1208WR
Click to zoom in

Injen 18-21 Subaru WRX STI H4-2.5L Turbo SP Aluminum Series Cold Air Intake - Wrinkle Red

Injen
INJSP1208WR
843115029746
Cold Air Intakes
9 Units In Stock - Ships Next Business Day
$ 350.64 $ 313.74
FREE Ground Shipping!
$ 313.74

SKU: SP1208WR | UPC: 843115029746

Injen 18-21 Subaru WRX STI H4-2.5L Turbo SP Aluminum Series Cold Air Intake - Wrinkle Red

This Injen SP Series cold air intake system upgrades 2018-2021 Subaru WRX STI models with a mandrel-bent 6061-T6 aluminum tube in wrinkle red finish for maximum airflow and dyno-proven gains up to 14 HP and 15 lb-ft torque. It fits Base, Limited, S209, and Type RA submodels with bolt-on installation that replaces stock airbox. Drivers gain responsive throttle and throaty intake sound under boost.

Key Features

  • Mandrel-Bent Aluminum Tubing: 3-inch diameter 6061-T6 aluminum pipe with wrinkle red powder coat ensures smooth unrestricted airflow and durable corrosion resistance.
  • SuperNano-Web Dry Filter: Fully serviceable 8.5-inch base x 7.5-inch top x 3.25-inch height filter traps dirt with 99.43% efficiency while allowing 45% more airflow than OEM.
  • Aggressive Intake Sound: Tuned design produces deep throaty roar at idle and under acceleration for audible performance feedback.
  • Complete Bolt-On Kit: Includes silicone couplers, stainless clamps, and CNC-machined MAF sensor flange for direct factory replacement without cutting or permanent mods.
  • Lifetime Warranty: Backed by Injen Technology limited lifetime warranty covering defects in materials and workmanship.

Product Notes

  • Filter is oil-free and washable for easy maintenance every 50,000 miles.
  • Replaceable filter part number SP1707RB available separately.
  • Free-flowing design works with stock tune, no ECU flash required.

Installation Notes

  • Professional installation recommended.
  • Bolt-on fit takes 1-2 hours with basic hand tools. remove stock airbox and intake tube.
  • All necessary hardware and O-ring seals included for secure mounting.

This Part Fits

Year Make Model Submodel
2018-2021 Subaru WRX STI Base
2018-2021 Subaru WRX STI Limited
2020 Subaru WRX STI S209
2018 Subaru WRX STI Type RA

Why Choose Injen?

  • Injen pioneered sealed cold air intakes with patented MR Technology since 1996.
  • Every intake dyno-tested for real-world power and torque increases.
  • Precision TIG-welded construction and premium materials built for track and street.

Frequently Asked Questions

  • Q: Does this fit 2018-2021 Subaru WRX STI with factory turbo?
    A: Yes, direct bolt-on for all listed 2018-2021 WRX STI Base, Limited, 2020 S209, and 2018 Type RA models with H4-2.5L EJ257 turbo engine.
  • Q: What material and finish does the SP1208WR use?
    A: 6061-T6 aluminum tubing with heat-resistant wrinkle red powder coat finish for style and protection against underhood temperatures.
  • Q: What warranty covers this intake?
    A: Injen Technology limited lifetime warranty protects against manufacturing defects when installed and maintained per instructions.

Shipping & Handling

  • Method: Free ground shipping on orders over $49
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed at 28 x 15 x 13.5 inches
  • Weight: 10.3 lbs shipping weight

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
Air Intake Systems

Air Intake Systems

Air Intake Systems, Cold Air Intakes & Performance Intake Parts Shop premium air intake systems, cold air intakes, short ram intakes, air boxes, intake components, intake elbows, mass air flow sensors, scoops, snorkels, recharge kits, silicone couplers, and intake hoses at Black Ops Auto Works. This collection is built for enthusiasts looking to improve airflow, throttle response, induction sound, horsepower potential, and under-hood performance across cars, trucks, SUVs, Jeeps, muscle cars, off-road builds, and supercharged HEMI platforms. Whether you are upgrading a daily driver, Dodge Charger, Dodge Challenger, Dodge Durango, Jeep Grand Cherokee, Jeep Trackhawk, Ram TRX, Ram RHO, Toyota Tundra, Chevy Silverado, Chevrolet Camaro, Corvette, BMW, Cadillac CTS-V, Honda, Hyundai, Infiniti, or a custom performance build, our Air Intake Systems collection includes parts designed for fitment, durability, and real-world performance. Air Intake Systems from Top Brands Shop trusted air ...

View Air Intake Systems Products
Cold Air Intakes

Cold Air Intakes

Shop All Air Intakes & Performance Intake Kits Premium cold air intakes, performance air intake systems, short ram intakes, carbon fiber intakes, sealed air box intakes, HEMI intakes, Hellcat intakes, Trackhawk intakes, TRX intakes, and vehicle-specific intake upgrades. This collection is built for enthusiasts looking to improve airflow, throttle response, induction sound, horsepower potential, and under-hood styling across street cars, muscle cars, trucks, SUVs, Jeeps, off-road builds, and diesel applications. Cold Air Intakes from Top Brands Shop trusted cold air intake brands including Legmaker Intakes, aFe Power, JLT Performance, K&N Engineering, Airaid, Corsa Performance, Injen Technology, Spectre Performance, and Wehrli Custom Fabrication. These brands produce cold air intakes, short ram intakes, carbon fiber intake systems, sealed intake kits, performance air filters, intake tubes, and vehicle-specific air intake upgrades for domestic, import, truck, Jeep, SUV, diesel...

View Cold Air Intakes Products
Injen

Injen

At Black Ops Auto Works, we stock the complete lineup of Injen performance air intakes and exhaust systems dyno-proven for maximum horsepower, torque gains, and throttle response with a signature deep intake tone. Explore top-selling Injen Evolution sealed cold air intakes, SP Series polished intakes, SuperNano-Web dry filters, and cat-back exhausts featuring mandrel-bent tubing and high-flow mufflers for trucks, SUVs, muscle cars, and imports all CARB-approved where applicable with lifetime warranties. Injen Intake for Jeep Grand Cherokee – HEMI Power Unleashed Grand Cherokee owners choose the Injen Power-Flow cold air intake for increased airflow, cooler charge temps, and an aggressive engine sound on 5.7L V8 builds. Aluminum intake tube with massive filter Dyno-proven gains and improved throttle response Easy bolt-on with no tuning required Shop Popular Injen Intake for Jeep Grand Cherokee Injen Intake for Dodge Durango – V8 Muscle Upgrade Dodge Durango drivers upgrade to Inje...

View Injen Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×