COBB Tuning Stage 1 Drivetrain Package – 2004-2021 Subaru STI

Cobb Stage 1 Drivetrain Package — No Knob — 2004-2021 Subaru STI 6MT

The Cobb Stage 1 Drivetrain Package for the 2004-2021 Subaru STI 6-speed manual includes the Cobb short throw shifter and front and rear bushing kit without a shift knob — the mechanical foundation of the drivetrain upgrade for owners who are sourcing a shift knob separately or already have one installed. All shift throw and bushing precision improvement is included; the knob is not.

DETAILS

• THIS LISTING: Stage 1 — no shift knob included
• Platform: 2004-2021 Subaru WRX STI EJ207/EJ257 6MT
• Cobb short throw shifter: double-adjustable 15% or 35% throw reduction on STI 6MT
• Front and rear bushing kit: eliminates lateral slop in factory 6MT bushings
• Shift knob NOT included — add separately in preferred color and style
• All installation hardware included

Stage 1 Mechanical Foundation: Throw Reduction and Bushing Precision

The Stage 1+ Drivetrain Package for the Subaru STI 6-speed manual transmission combines three components that address the three main sources of imprecision in the factory shifting feel. The Cobb short throw shifter replaces the factory shift lever with a double-adjustable unit that provides a 15% or 35% reduction in throw length — the shift gates are shorter and gear selection requires less arm movement. The front and rear shifter bushings replace the factory rubber bushings with tighter-tolerance units that eliminate the slop and vagueness in the shifter’s lateral motion. The shift plate installs at the base of the shifter and provides the adjustable geometry that works together with the bushings to produce a shift action that is both shorter and more precise.

No Knob Included — Add Separately for Complete Package

The Stage 1 package without a knob is the correct choice for owners who already have a preferred shift knob or who want to source one independently from the drivetrain hardware. All of the mechanical improvement — the throw reduction from the short throw shifter and the precision improvement from the bushing kit — is present and identical to the Stage 1+ packages that include a knob. Nothing is compromised in the shifting improvement by the absence of the knob.

What’s in the Box

• Cobb short throw shifter (double-adjustable)
• Cobb front and rear bushing kit
• All installation hardware
• (Shift knob not included)

Why Choose Cobb Tuning

Cobb Tuning has been developing performance software and hardware for turbocharged enthusiast vehicles since 1999. Founded in Austin, Texas, Cobb built its reputation on the Accessport and expanded into a full catalog of hardware engineered to complement it. Every OTS map is developed in-house on real vehicles, and every hardware product is validated as part of a complete system — not sourced and sold in isolation. That integrated approach is why Cobb produces consistent, reliable results across the builds we see every day.

The RallySport Take

The Cobb Stage 1 Drivetrain Package for the STI 6MT without a knob is for owners who want to handle the knob selection separately. Add any Cobb shift knob — weighted, tall weighted, standard, in any available color — to complete the package with the exact visual combination the build calls for.

Fitment

Year	Make	Model	Notes
2004-2021	Subaru	WRX STI	EJ207/EJ257 6MT
2007-2009	Subaru	Legacy GT spec.B	EJ257 6MT