Injen SP Cold Air Intake System for 2015-2021 Subaru STI H4-2.5L Turbo, Aluminum Finish

$405.48 USD

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Injen – Cold Air Intakes. Fits Subaru WRX STI VA.

  • Made to order — subject to stock confirmation.
  • Your card is authorized now, charged only once we confirm stock (usually within 24 hours).
  • Ships from our Wisconsin warehouse. Delivery 3–7 business days.
  • Ships direct from our supplier network — delivery depends on supplier availability.
  • Not sure it fits? Ask us →

Hey there, fellow car enthusiasts! If you?re looking to give your Subaru STI a serious boost, let me tell you about the Injen SP Cold Air Intake. This isn?t just any intake; it?s specifically designed for the 2015-2021 Subaru STI with the H4-2.5L Turbo engine. You know how these engines can feel a bit choked up? Well, this intake helps them breathe easier and unlocks some extra horsepower that you didn?t even know you were missing.

What makes the Injen SP series stand out? For starters, it?s built from 6061-T6 aluminum, which means it?s tough and lightweight. The engineers at Injen have crafted this intake to create a smooth, uninterrupted airflow path. This design helps maximize performance while keeping your air-fuel ratio safe across the power band?no need to worry about tuning here; it?s a direct fit that plays nice right out of the box.

Now, let?s talk numbers. You can expect dyno-proven gains of up to 24 horsepower and 24 lb-ft of torque. That?s not just a marketing gimmick; it?s real power you can feel. Plus, the intake has a custom heat shield that's specifically designed for this application, so you?re getting all the benefits without any added heat soak.

One of my favorite features is the Injen SuperNano-Web dry air filter. This bad boy has a larger surface area, which means better airflow and filtration. And when you?re on the gas, you?ll love the aggressive, throaty sound it produces?trust me, it?s music to any car lover?s ears.

If you?re into aesthetics, Injen offers this intake in multiple finishes, so you can add a bit of personal flair under your hood. And let?s not forget, it comes with a limited lifetime warranty, so you know they stand behind their product.

Just a heads up, though: this intake isn?t CARB exempt, so if you?re in California, you might want to look elsewhere. But for everyone else with a 2015-2021 Subaru STI, this is a solid upgrade that?ll make your ride feel more alive.

Features:

  • Direct fit for 2015-2021 Subaru STI I4-2.5L Turbo
  • Dyno-proven gains of up to 24 hp and 24 lb-ft of torque
  • Cold air intake design for optimal performance
  • Injen?s patented Air Fusion Technology for improved airflow
  • Maintains safe air-fuel ratios without additional tuning
  • Durable 6061-T6 aluminum intake tubing
  • Custom heat shield included
  • Fully serviceable Injen SuperNano-Web dry air filter
  • Replacement filter part number: x-1059-BB
  • Available in various finishes to match your style
  • Aggressive engine tone at full throttle
  • Smooth piping to eliminate restrictions
  • Made in Pomona, California, USA
  • Limited lifetime warranty from Injen Technology
  • Not CARB exempt; not available for purchase in California

So, if you?re ready to take your STI to the next level, the Injen SP Cold Air Intake is definitely worth checking out.

Other Part Numbers:
Injen #injSP1206BLK

Proposition 65

âš WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Fitment: Subaru WRX STI VA (2015-2021) EJ257 2.5T

Please confirm year, trim and engine before ordering.

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