Skip to product information
1 of 2

Kthnxbye Racing

Crawford V3 Air/Oil Separator | Multiple Subaru Fitments

Crawford V3 Air/Oil Separator | Multiple Subaru Fitments

Regular price $356.20
Regular price $374.95 Sale price $356.20
Sale Sold out
Shipping calculated at checkout.

WRX/STI V3 Air/Oil Separator by Crawford Performance

The Crawford Performance Air/Oil Separator (AOS) is the original solution to Subaru's notorious oiling system issues. Although the technology was pre-existing with other vehicle brands such as Porsche, Crawford Performance is the inventor of the first system specifically for Subaru. No other AOS on the market employs the same technology.

The V3 is our best yet – developed with the consumer in mind. It is easier to install than the V2, and now utilizes the OEM PVC system making it smog legal.

This kit includes the can itself, and all necessary hoses and fittings to install. The install does take some mechanical knowledge, so we suggest taking your car in to a professional for installation. That being said, we provide step by step instructions so that enthusiasts can install the kit at home with a few simple tools.


  • Improved Dual Chamber Design
  • Easier to Install
  • Smog Legal
  • Right-Hand Compatible
  • Universal to any 2008+ EJ Engine


  • Not a Catch Can - Closed Loop and Maintenance Free
  • Reduce Oil Consumption
  • Reduce Detonation and Risk of Engine Failure
  • Reduce Fuel Dilution and Subsequent Power Loss

Please Note:

  • Fitment: Top Mount Intercooler and Select FMIC Kits. Unit is mounted right behind the coolant tank. On 2015+ STi's, the sound generator gets deleted.
View full details