Billetworkz Interior Kit: E-Brake & Climate Control for WRX
By Custom Shift Knobs & Interior Mods | Published: 2026-10-24
Category: Product Reviews
Upgrade your Subaru WRX interior with the Billetworkz Ultimate Kit. This guide covers what's included, fitment, and who should buy it.
Quick Answer
If you want a coordinated, high-end interior upgrade for your 2015-2021 Subaru WRX, the Billetworkz Interior Kit (Ultimate) is a solid choice. It bundles billet aluminum e-brake and climate control pieces with a Fusion shift knob for a cohesive look.
What Makes This Kit Different
Instead of buying individual shift knobs, e-brake handles, and climate control knobs, this kit gives you everything in one package. The parts are CNC-machined from billet aluminum and anodized, which means they resist scratches better than painted plastic pieces. The kit is designed specifically for the 2015-2021 Subaru WRX, so fitment is direct without adapters.
Trade-Offs to Consider
The biggest trade-off is price. At $264.96, this kit costs more than buying a single shift knob or a set of aluminum caps. You're paying for the full set and the billet construction. Also, if you only want to upgrade one part—say just the e-brake handle—this kit is overkill. The anodized finish looks great but can chip if you drop a piece on concrete during installation, so handle with care.
Decision Rules
- You want a complete interior overhaul: If you're planning to replace your shift knob, e-brake handle, and climate control knobs anyway, this kit saves you the hassle of matching parts from different brands.
- You prefer billet aluminum over plastic: The CNC-machined and anodized construction is more durable and feels premium compared to factory plastic or painted aftermarket parts.
- You own a 2015-2021 Subaru WRX: This kit is designed specifically for that generation. It won't fit other Subaru models or earlier/later WRX years without modification. Check your model year before ordering.
Product Details
- Billetworkz Interior Kit (Ultimate): E-Brake and Climate Control Kit & Fusion - Subaru WRX 2015-2021: This kit upgrades climate controls and parking brake components with billet aluminum pieces, plus includes a premium-weight Fusion Shift Knob. You get a matched set that transforms the look and feel of the main touchpoints in your WRX interior without mixing brands or finishes.
Billetworkz Interior Kit (Ultimate): E-Brake and Climate Control Kit & Fusion - Subaru WRX 2015-2021
Is This Kit Right for You?
Best For
- WRX owners who want a coordinated, high-end interior upgrade
- Drivers who value billet aluminum construction and scratch-resistant finishes
Not For
- Budget-focused shoppers who only need a single shift knob
- Owners of non-WRX Subaru models or WRX years outside 2015-2021
