Torque Solution Upper Differential Mount Insert 2015-2021 WRX / 2015-2021 STI YMM_2016_WRX the GTC-300 features a 3D

the GTC-300 features a 3D airfoil shape validated by Computational Fluid Dynamics (CFD) for optimal airflow

it delivers a noticeable difference in driving dynamics on both street and track

The Perrin Front Strut Tower Brace is designed for straightforward installation using the vehicle’s factory hardware

The included shifter bushings help improve shift feel and reduce slop

Torque Solution Upper Differential Mount Insert 2015-2021 WRX / 2015-2021 STI YMM_2016_WRX the GTC-300 features a 3DUpgrade your 2015 2021 Subaru WRX or WRX STI with the Torque Solution Upper Differential Mount Insert from Subimods. This premium insert replaces the soft OEM bushings with a high durometer 75A polyurethane material, significantly reducing unwanted slop and flex in your drivetrain. Experience sharper throttle response, improved power transfer, and more precise handling for a more engaging driving experience. Crafted from durable billet and