The IAG Competition Series Engine Mounts are engineered to provide firm stability and precise performance for spirited street driving and weekend competition. Designed for 2002–2007 WRX, 2004–2021 STI, and 2004–2008 Forester XT models, these mounts feature 90A durometer bushings—approximately 30% stiffer than Subaru GROUP N bushings—delivering superior support and minimizing engine movement under heavy acceleration. This ensures optimal throttle response and direct power transfer, making them ideal for high-performance and high-powered builds.
The kit includes eight 90A bushings, slightly stiffer than the Street Series 75A bushings, offering enhanced stability and control. Installation is straightforward: with mechanical experience, the mounts can be installed in about 30 minutes using a lift, or slightly longer without one. OEM engine mounting plates are required and can be reused, or replaced with Subaru Part Numbers 41031VA000 and 41031VA010 (sold separately).
For drivers seeking a softer ride, IAG offers 75A Street Series bushings for a balance between comfort and performance, 55A Comfort Series bushings for an even more compliant feel, or solid steel Race Series bushings for maximum stiffness in high-powered race applications. As with all performance mounts, a slight increase in NVH (Noise, Vibration, Harshness) is expected.
