COBB Tuning Delrin Shift Knob Black 6MT - Subaru 6MT Models (inc. 2004+ STI / 2015+ WRX) pdm_pedals Increases front downforce at high

Increases front downforce at high speeds

Installing the manifold and up pipe is a breeze as it includes all hardware

the screen in the design has a 31% improvement in the flow to further reduce the restriction

255 LPH flow rate

This larger diameter will easily support all bolt on modifications especially aftermarket cams

COBB Tuning Delrin Shift Knob Black 6MT - Subaru 6MT Models (inc. 2004+ STI / 2015+ WRX) pdm_pedals Increases front downforce at highThe Shift Knob Your Hand Deserves The Cobb Delrin Shift Knob Black 6MT Subaru 6MT Models (inc. 2004+ STI 2015+ WRX) is a Delrin shift knob designed as a direct replacement for the factory unit on 2015 2021 Subaru WRX STI . Delrin is a precision machined engineering plastic with a surface hardness and density that gives it a weighted, solid feel without the full mass penalty of an aluminum knob it's comfortable in both cold and hot conditions and