Kartboy Short Shifter Kit 6-Speed Tallboy Subaru STI 2004-2021 | KB-001-01010

Overview

The Kartboy Tallboy Short Shifter Kit is a precision-engineered performance upgrade designed specifically for the 2004–2021 Subaru WRX STI with a 6-speed manual transmission. Built for drivers who demand quicker, more precise gear changes, this short shifter reduces throw length for a sportier, more connected driving feel without sacrificing daily drivability. Whether you're attacking canyon roads or chasing lap times, the Kartboy KB-001-01010 is the go-to short shifter for Subaru enthusiasts.

Key Features & Benefits

• Reduced Shift Throw – Shorter lever travel between gears means faster, more confident gear changes that keep you in the powerband longer.
• Tallboy Design – The taller lever geometry provides a more natural hand position and improved leverage, reducing wrist fatigue during spirited driving.
• Precision Fitment – Engineered specifically for the 6-speed GR/GV/VA-chassis WRX STI, ensuring a direct bolt-on installation with no modifications required.
• High-Quality Construction – Machined from durable materials for long-term reliability under high-performance driving conditions.
• Complete Kit – Includes all necessary hardware for a straightforward installation, eliminating the need to source additional components.
• Improved Driver Engagement – Noticeably more tactile and precise shifting feedback compared to the stock OEM shifter assembly.
• Street & Track Ready – Equally effective for daily commuting and track-day performance applications.

What's Included

• Kartboy Tallboy Short Shifter Lever
• All necessary installation hardware and bushings
• Manufacturer instructions

Specifications

Fitment & Compatibility

The Kartboy KB-001-01010 Tallboy Short Shifter Kit is compatible with the following vehicles:

• 2004–2007 Subaru STI (GD/GG Chassis) – 6-Speed Manual
• 2008–2014 Subaru WRX STI (GR/GV Chassis) – 6-Speed Manual
• 2015–2021 Subaru WRX STI (VA Chassis) – 6-Speed Manual

Note: This kit is designed for the WRX STI 6-speed transmission only and is not compatible with the standard WRX 5-speed or the 2022+ WRX/STI platform. Please verify your transmission type before purchasing. Cross-reference OEM part numbers to confirm compatibility with your specific build.

Installation

The Kartboy Tallboy Short Shifter Kit is a bolt-on replacement for the factory shifter assembly and is designed to be installed without permanent modification to your vehicle. Basic hand tools and mechanical familiarity with your Subaru's interior and shifter assembly are recommended. Most experienced DIY installers can complete this installation in 1–2 hours. Professional installation is available at most performance shops if preferred. Always consult the included instructions before beginning installation.

Is this short shifter compatible with aftermarket shift knobs? Yes — the Kartboy Tallboy Short Shifter is compatible with most aftermarket shift knobs that use the standard Subaru STI thread pitch. Confirm thread specifications with your knob manufacturer for best results.