Billetworkz - Dedicated to the Enthusiast
Made in USA, Weighted Feel, Custom Fitment
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Billetworkz Subaru STI SI-Drive Knob Cap

$50.00
$50.00
Shipping calculated at checkout.
Drive Cap Color: Red

Refresh your Subaru STI’s interior with the Billetworkz SI-Drive Cap – a direct replacement for your factory button cover that adds a bold, custom touch in minutes.

Crafted for STI models equipped with Subaru’s SI-Drive system, each cap is precision CNC-machined from high-quality billet aluminum and finished in a range of durable colors. Whether you want a subtle accent or a standout detail, there’s an option to match your build and style.

Elevate your cabin with a premium upgrade that combines precision, durability, and style.

Materials

  • CNC-cut from high-quality 6061 billet aluminum for a perfect fit and tactile feel.
  • Available in a variety of vibrant anodized colors or powder-coated finishes for long-lasting durability.

Specs

  • Designed to fit over or replace the factory SI-Drive selector with OEM-level precision.
  • Precision CNC-machined from billet aluminum
  • Durable finish available in multiple colors
  • Installs easily – no special tools required
  • Compatible with Subaru STI models equipped with SI-Drive

Installation Guide

Installing is simple—and we’ve got you covered:

View All Install Guides →

Processing Time

Most orders ship within 1–3 business days, but processing times can vary depending on inventory, color selection, and customization options.

Our Guarantee

Your satisfaction is important to us. Most standard items are eligible for returns within 15 days, and all Billetworkz products are backed by our Limited Lifetime Warranty.

See our full Refund Policy and Warranty Details for complete information.

Billetworkz Subaru STI SI-Drive Knob Cap

$50.00

  • 1x Knob Extender

    In the selected size and color

  • Install Instructions

    Either printed or a link/QR code to view online

Precision Within Reach

Bridge the gap between your steering wheel and shifter for faster, more intuitive gear changes. CNC-machined for maximum durability, our extenders provide a rigid, high-performance feel that transforms your daily drive.

Bold Reach, Custom Finish

Give your interior a high-end, motorsport-inspired look with an anodized extender that puts your shift knob exactly where you want it. Engineered for a seamless fit, it’s the ultimate upgrade for drivers who demand both striking aesthetics and tactile precision.