Cobb Stg 2+ Drivetrain Pkg w/ Tall Weighted Shift Knob - Red Knob / White & Red Lockout - 2004-2021 Subaru STI 6MT PDM_timing-belt-components it will clog your intake

it will clog your intake valves

The end decision is based on personal preference

This is Verus Engineering's Air Oil Separator

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Cobb Stg 2+ Drivetrain Pkg w/ Tall Weighted Shift Knob - Red Knob / White & Red Lockout - 2004-2021 Subaru STI 6MT PDM_timing-belt-components it will clog your intakeCobb Stage 2+ Drivetrain Package Weighted White Knob + Red Lockout 2004 2021 Subaru STI 6MT The Cobb Stage 2+ Drivetrain Package for the 2004 2021 Subaru STI 6 speed manual transmission adds a Reverse Lockout Pull Ring to the Stage 1+ components. This listing is the Weighted White knob with Red lockout variant. The combination of shift knob color and lockout color is what distinguishes this specific listing from other Stage 2+ variants all mechanical