Custom Shift Knobs & Interior Mods

Billetworkz Alcantara Kit (Ultimate): Shift Knob, Shift Boot, E-Brake Boot Kit, and Door Pull Straps (2 Sets) - Subaru STI 2015-2021

Billetworkz Alcantara Kit (Ultimate): Shift Knob, Shift Boot, E-Brake Boot Kit, - Main image
$388.37 $547 In stock

Category: Shift Boot Premium

Transform your STI interior with the most complete Alcantara upgrade we offer. This Ultimate Kit enhances every major touchpoint in your cabin with authentic Alcantara and finishes the experience with a performance-weighted Fusion Alcantara Shift Knob. The result is a luxurious, cohesive, and engaging driver environment worthy of a modern performance car.

Alcantara’s soft, suede-like texture delivers the upscale feel of high-end sports cars, while the added shift-knob weight improves engagement and precision with every gear change. This bundle replaces the most frequently touched components in your cockpit, giving your STI a premium look and tactile feel throughout.

Choose Any Stitch Color

Mix and match any available stitching option to create a personalized interior theme. Every dropdown option is fully supported—even if certain combos aren’t pictured.

What’s Included

Fusion Alcantara Weighted Shift Knob (6-Speed)

A performance-oriented, weighted shift knob wrapped in Alcantara for superior grip and comfort.

  • Enhanced Engagement: Added mass delivers smoother, quicker, and more precise shifts.
  • Premium Appearance: Acts as a luxury focal point for your center console.

Premium Alcantara Shift Boot (Manual)

A hand-crafted Alcantara replacement for the factory boot, offering a clean, modern, and premium look around the shifter.

Premium Alcantara E-Brake Boot (Manual)

A matching Alcantara boot that ties your shifter and e-brake areas together for a cohesive aesthetic.

Alcantara Door Pull Strap Kit (2 Sets)

Replaces the OEM plastic door pulls with soft-touch Alcantara straps.
Adds a unique, motorsport-inspired detail while completing your cabin’s overall theme.

Installation Tools (Included FREE)

Boot Install Kit: All required mounting hardware and cables for a secure fit.
Trim Removal Tool Kit: Non-marring tools for safe, scratch-free removal of interior panels and trim.

Why You’ll Love This Kit

  • Full Alcantara Transformation: Every major touchpoint upgraded with premium material for a rich, unified look.
  • Performance Weighted Shifter Feel: Improved shift action thanks to the Fusion Alcantara knob’s added mass and ergonomic shape.
  • Cohesive, Factory-Plus Aesthetic: Matching materials and stitching deliver a refined, harmonized appearance across your console and doors.
  • DIY-Friendly Installation: Comes with all tools and hardware for an easy, professional-quality install.

Vehicle Fitment

2015-2021 Subaru STI

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Natalie Z. ★★★★★

The Alcantara on the shift boot and door pulls has a noticeably grippier texture than the stock fabric, which feels much nicer during daily driving. Took about an hour to install everything, but the stitching and fit around the e-brake are spot-on. Exactly the upgrade my STI cabin needed.

Riley ★★★★★

Installed this a couple weekends ago and the Alcantara feels noticeably softer than my old vinyl shift boot. The door pull straps were a nice surprise—they match perfectly and make the cabin feel way more premium.

David N. ★★★★★

The shift boot fits perfectly around the factory trim and the stitching matches the stock interior better than I expected. Installed everything in under an hour and it completely changes the feel of the cabin.