Crawford Performance Subaru WRX & STI Parts Collection

Subaru WRX and STI Performance Parts

Crawford has built WRX and STI engines since 1993, including the Gymkhana cars and the world's fastest STI. This collection is every WRX / STI part we sell, from the EJ-era GD and GR chassis through the FA20 DIT VA.

Engines

Bolt-ons

  • Air Oil Separators V2 and V3 for every turbo WRX / STI from 2002 to 2021
  • Gymkhana exhaust for the 2002–2007 and 2008–2014 cars, GK2 cat-back for 2015–2021
  • Motul oils and fluids, NGK one-step-colder plugs, K&N filters

Building something specific? Email technical support with your year, engine and power goal.

Built in-house

Engines assembled at our East Coast facility. Parts designed, tested, and proven on our own cars — including the Gymkhana builds.

Support from the builders

Questions go to the people who made the part, not a call center. Contact us — a real person answers.

Backed in writing

Engines carry 1 year / 12,000 miles. AOS carries a limited lifetime warranty. Extended engine coverage is available.