Solid Transmition Mounts SUBARU GC / GD WRX STI 1992-2011 Blue poliuretane 60ShA - model 2013 -Transmition Mount - gold version -Helps Stabilizes Engine Torque -Better Drivetrain Response When increasing horse power, engine torque causes engine to move excessively, Our products are used in drifcie since 2007 and are very popular players :) testing in car 380 HP This upgrade helps to decrease these loads, and is also a better solution when replacing old factory mounts which wear out in time. It helps with stabilizing engine torque and provides better drivetrain response. Also recommended in Sport and street racing