Subaru's performance division Subaru Technica International (STi) realized years ago that there were real benefits to stiffer engine and transmission mounts for modified cars, and for motorsport use. They produced these Group-N mounts for homologation in some Rally classes, but enthusiasts quickly realized that they were beneficial on modified cars as well.
Subaru currently makes 2 Group-N transmission mounts. One is for the Subaru 5-Speed, and one is for the STI 6-Speed. Fitment is as follows:
D1010FE020 - 5-Speed Mount
- This mount fits the 5-Speed Manual WRX, Impreza 2.5i, 2.5 RS, Forester XT, Legacy GT,
and Outback XT
- This mount also fits the 6-Speed transmission in the WRX from 2015 - 2019
D1010FE000 - STI 6-Speed Mount
- This fits the 6-Speed transmission in the STI from 2004 - 2019 only
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.