Kartboy Short Throw Shifter 6MT Subaru STI 2004-2021 | KB-20-STI Vehicle Model_Forester Aftermarket underdrive pulleys are prone

Aftermarket underdrive pulleys are prone to charging and drivability problems

TiAL Vband Clamp

Installation of this item requires removal of the factory bumper beam

To solve this problem

With the Injen SP

Kartboy Short Throw Shifter 6MT Subaru STI 2004-2021 | KB-20-STI Vehicle Model_Forester Aftermarket underdrive pulleys are pronePart #: KB 20 STi For you Subaru STI owners looking for improvements in the shifter throw, the Kartboy unit will reduce movement by 40% providing a noticeable difference and a solid feel. Also note that your shift knob height will be reduced by 1 as well. Constructed from CNC and TIG welded 4130 Cr Mo steel, these can be installed on average about 30 minutes with simple hand tools.