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Billetworkz Interior Kit (Ultimate): E-Brake and Climate Control Kit & Fusion - Subaru WRX 2015-2021

$309.00
$309.00 $384.00
Shipping calculated at checkout.

Transform your entire WRX interior with the most complete bundle in our lineup. The Billetworkz Interior Kit (Ultimate) upgrades your climate controls and parking brake components with billet aluminum pieces, then finishes the experience with our premium-weight Fusion Shift Knob for a high-end, performance-inspired cockpit.

Every component is CNC-machined and anodized for a refined, scratch-resistant finish that delivers both style and tactile satisfaction. Installation is simple and fast, making this one of the most effective interior upgrades you can make.

Choose Any Color Combo:

Feel free to select any finish combination you want—every color option in the dropdown is available, even if certain combos aren’t shown in the photos.

What’s Included

E-Brake Handle

A sleek, billet aluminum upgrade designed for a solid, confident feel and a precise, scratch-resistant finish.

E-Brake Button

A billet “drift style” button that replaces the factory plastic piece. Threads on easily for a crisp, premium control feel.

Climate Control Covers (Set of 3)

Direct-fit covers that instantly elevate your dashboard aesthetics. Press-fit installation—no tools or disassembly needed.

Fusion Shift Knob

A weighted, performance-driven shift knob crafted with a multi-layered finish for depth, grip, and color richness. Enhances shift feel and cabin aesthetics. 

Materials

  • CNC-Machined Construction: All components are crafted from high-quality billet aluminum (or equivalent premium materials depending on the bundle).
  • Durable Finishes: Anodized or coated surfaces designed to resist wear, fading, and corrosion for long-term use.
  • Quality Assurance: Designed and machined to Billetworkz standards and backed by our fitment and durability guarantee.

Specs

  • Compatibility: Subaru WRX & STI (2015–2021).
  • Included Hardware: Every kit comes with the appropriate parts needed for a complete installation.
  • Packaging: Each component is individually wrapped for scratch protection during shipping.

Installation Guide

View All Install Guides Here →

Access our step-by-step installation guides and install your Billetworkz products with confidence. Each guide provides clear instructions to ensure perfect fitment every time.

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 Interior Kit (Ultimate): E-Brake and Climate Control Kit & Fusion - Subaru WRX 2015-2021

$309.00

Cohesive Interior Upgrade

Create a unified, high-end look across your cabin with perfectly matched finishes and color options.

Superior Feel & Control

Enjoy the solid, precise feel of CNC-machined components every time you adjust your climate controls or engage the e-brake.

Effortless Installation

Direct-fit designs make this one of the easiest and most impactful interior mods you can install.