Unlock more from your EJ-powered WRX STI with Perrin’s Cold Air Intake—engineered specifically for the 2015–2017 model years. This intake is designed to deliver more power, sharper throttle response, and improved engine sound, all while retaining a clean OEM-level fit and finish. For STI owners, it’s one of the most impactful bolt-ons you can install—especially when paired with a tune.
Perrin constructs their intake from CNC mandrel bent aluminum, ensuring a consistent internal diameter and turbulence-free airflow. The one-piece design places the filter in the fender well, drawing in colder, denser air compared to stock. This positioning helps reduce heat soak from the engine bay, resulting in more stable intake temperatures and better combustion efficiency, particularly under wide-open throttle.
In terms of performance, gains of 10–15 horsepower are achievable with proper tuning. Expect crisper throttle response, stronger midrange pull, and improved top-end breathing—especially noticeable when transitioning into boost. The upgraded airflow allows the turbo to spool faster and maintain pressure more efficiently, making the car feel more responsive in all driving conditions.
What sets the Perrin intake apart isn’t just numbers—it’s the way it makes the STI feel. You'll hear a satisfying increase in induction noise: turbo spool becomes more pronounced, and the blow-off valve is louder and sharper. It turns every gear change and throttle input into an event, adding excitement without compromising drivability.
Tuning is essential with this intake, as the change in MAF scaling requires recalibration. When dialed in properly, the intake becomes a cornerstone mod for future upgrades like downpipes and intercoolers, supporting your build all the way to stage 2 and beyond.
- CNC mandrel bent aluminum tubing for unrestricted airflow and consistent performance
- Powder-coated finish for heat resistance and OEM-like durability
- Filter placement in fender well helps reduce intake air temperatures
- Sharper throttle response and stronger boost transitions when tuned
- Enhanced intake and turbo sound, including more audible spool and BOV noise
- Built specifically for the EJ257-powered 2015–2017 STI
- Designed for perfect fitment with OEM brackets and couplers
Perrin continues to be one of the most trusted names in Subaru tuning for a reason—their products are track-tested, enthusiast-approved, and made to last. If you’re looking for an intake that delivers not just performance, but a deeper connection to your car, this is it.
CARB NOTE:
This product cannot ship to the state of California as it is not CARB compliant.