FREE SHIPPING* On Orders Over $199 within 48 States
Shop in Confidence with Our Price Protection Program!
The 1% Award · Auto Parts Store of the Year 2026
Clear Car Save Vehicle
  • Process West 15-21 STI Cold Air Intake - Black | PWCAI07

Process West

Process West Be the first one to review

15-21 STI Cold Air Intake - Black | PWCAI07

$40300
Earn $8.06 In JDMuscle Rewards!
Ships When Available-Lead Time Applies ⓘ
Financing available starting $12.59 /month and as low as 0% APR.

Auto Parts Store of the Year 2026

Process West 15-21 STI Cold Air Intake - Black | PWCAI07
Be the first one to review

Estimated Shipping Widget will be displayed here!

Profile Avatar

Talk to an Enthusiast

Verify Fitment & Product Recommendations

M-F 8:30AM - 5:00PM

(866) 833-3536 Email

Fitment

  • 2015–2021 Subaru | WRX STI

Description

Process West's intake system for the 2015+ STI is designed to maximize air flow and comes with a K&N high flow air filter. *NOT CARB Compliant* Shipping to California is restricted due to not being CARB compliant.

Top top it off, a serviceable K&N intake filters all the harmful elements and allows the engine to breathe at its full potential.

A tune is required to run these intakes. Maps are available to use on your OTS (off the shelf) tuning device.

Shipping and Delivery

Review our Shipping Policy for delivery details, shipping costs and exclusions.

Warranty and Support

Limited Manufacturer Warranty

Return and Refund

Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.

Proposition 65

Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov