Billetworkz 4-Inch Shift Knob Extender – Subaru WRX/STI 6-Speed
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Upgrade your driving experience with the Billetworkz 4-inch Shift Knob Extender — designed for more comfortable, ergonomic shifting. By raising the height of your shift knob, the extender reduces the reach from the steering wheel and provides extra leverage for smoother, quicker gear changes. Pair it with a short shifter for even greater performance gains.
Each extender is CNC-machined from high-quality aluminum, then polished and anodized for a durable, scratch-resistant finish that looks as good as it feels.
- Precision fitment for 6-speed Subaru models (i.e. WRX, STI, BRZ (excluding 22+), Crosstrek, Forester, Legacy, Outback)
- Designed with proper clearance for the factory reverse lockout
- Easy install — no modifications required
Take control of every shift with a part that combines style, comfort, and performance.
Billetworkz has earned its reputation as a leading manufacturer of premium automotive accessories through more than a decade of innovation and quality craftsmanship. From our foundational shift knobs to today's full product ecosystem, we continue expanding our in-house capabilities to deliver the precision-engineered components that automotive enthusiasts, like you, expect.