Powerflex | Lower Torque Mount Insert | Toyota GR Yaris | G16E-GTS | 2021+The Powerflex Torque Mount Bush Insert is an affordable and easy to fit bush insert made from either Yellow 70A Durometer or Black 95A Durometer vibration absorbing material, which works to stiffen the OEM torque mounting accordingly (the Black insert will significantly stiffen the mount). This reduces twist of the engine under acceleration and during gear changes, giving the pedals a more direct feel, as well as reducing wheel hop and letting you get