Due to the slop of the internals in the 2015-2021 WRX transmission, there is an unacceptable amount of horizontal slop within the 1st- and 2nd- gear shift gates. What should be little to no movement ends up being nearly 1.0 inch of play. This makes for an unnatural placement of shift gates and a lost feeling of which gear you are in. The Perrin shifter stop removes this play, reducing the horizontal movement to 0.12 inches. This makes for a solid connection between the driver and transmission. Included with each Perrin shifter stop is hardware that removes an existing gap in the shifter assembly, further reducing lateral shifter assembly movement. If using a STI short throw kit on a 2018-2021 car use the 2015-2017 unit.
Fits all manual-transmission 2015-2021 WRX.