Cobb Stage 1+ Drivetrain Package Black Knob Red Collar Subaru STI 2004-2021 | 215X01P-RD

Upgrade your STI’s shifting precision and feel with the COBB Stage 1+ Drivetrain Package for the 6‑speed manual. This complete bundle includes front and rear shifter bushings, a double adjustable short‑throw shifter, and a COBB knob — everything needed to tighten up factory shift slop and customize your throw and shift ergonomics.

This comprehensive drivetrain upgrade allows you to reduce slop in the shifter system, adjust throw length, and improve driver connection through each gear change.

Key Features & Benefits

• Includes front shifter bushing (95A durometer) and rear shifter stay bushing (85A durometer)

• Double adjustable short‑throw shifter: throw can be tuned from +10% longer to –25% shorter

• Height‑adjustable knob for ±1 inch of vertical adjustment

• Knob specs: 104 grams, 2.59″ tall, 1.938″ wide

• Ideal bundle to address shifter slop and improve shift feel

Specifications & Fitment

Installation Tips & Best Practices

1. Safely raise the car and remove interior panels to access the shift assembly.

2. Extract the original shifter and bushings, recording original orientation if desired.

3. Install the new front and rear bushings to reduce slack and movement.

4. Mount the adjustable shifter and set throw length and knob height before fully tightening.

5. Torque all hardware to specifications and reassemble the interior.

6. After a short break‑in period, recheck all fasteners and evaluate shift feel for fine adjustments.

Pro Tip: Start with a moderate throw setting near stock and adjust shorter gradually once you become accustomed to it.