COBB Tuning Delrin Shift Knob Black 6MT - Subaru 6MT Models (inc. 2004+ STI / 2015+ WRX) pdm_pedals Installing the manifold and up

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

To help prevent starvation issues

255 LPH flow rate

This particular radiator has been designed to sustain the perils of racing conditions where the engine lives in the upper-RPM range for long periods of time

COBB Tuning Delrin Shift Knob Black 6MT - Subaru 6MT Models (inc. 2004+ STI / 2015+ WRX) pdm_pedals Installing the manifold and upThe 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