From the factory, Subaru offers multiple levels of their own transmission mounts, with the softest being the WRX, OEM STI in the middle, and then Group N as their stiffest option. But even the Group N leaves a lot of control left on the table.
With the 75A durometer bushings included on our Transmission Mount, ours are 2 times stiffer than the Group N mounts, which makes them 5 times stiffer than the stock STI mount, and a staggering 16 times stiffer than the stock WRX! That means that the improvement in transmission and drivetrain control will be felt coming from any of the factory options.
Even though this setup is designed to feel right at home on a track-prepped vehicle, there is no need to fear daily driving with it. We have tested a variety of bushing stiffness's and found that these offer the best balance for on-road use, making certain that there is a minimal increase in NVH during normal driving.
Included:
• GrimmSpeed Street Transmission Mount - All Subaru 5MT and 6MT
Features:
• Robust 6061 Billet Aluminum and 304 Stainless Steel Construction
• Red 75A Durometer Bushings for Reduced Transmission Movements and a More Solid Shifter Feel
• Compatible with both 5-Speed and 6-Speed Manual Subaru Transmissions
• Kit Includes and Adapter Spacer Required for Proper Geometry with 5-Speed Manual Transmissions