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Billetworkz Engine Bay Cap Set 2015 - 2021 STI - BW-EBCZ-SUB-VASTI-BLK-E - Subimods.com

Billetworkz Engine Bay Cap Set 2015-2021 STI

$275.00
$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00
Only 1 Left In Stock! Usually Ships within 1-2 Business Days
Stock Status: Ships Directly From Manufacturer – Delivery Times Vary What does this mean
Only 3 Left In Stock! Usually Ships within 1-2 Business Days
Stock Status: Ships Directly From Manufacturer – Delivery Times Vary What does this mean
Stock Status: Ships Directly From Manufacturer – Delivery Times Vary What does this mean
Stock Status: Ships Directly From Manufacturer – Delivery Times Vary What does this mean
Stock Status: Ships Directly From Manufacturer – Delivery Times Vary What does this mean
Stock Status: Ships Directly From Manufacturer – Delivery Times Vary What does this mean
Stock Status: Ships Directly From Manufacturer – Delivery Times Vary What does this mean
Stock Status: Ships Directly From Manufacturer – Delivery Times Vary What does this mean
Stock Status: Ships Directly From Manufacturer – Delivery Times Vary What does this mean
SKU BW-EBCZ-SUB-VASTI-BLK-E
by Billetworkz
Lease to own Pay as low as $/week

DETAILS

Elevate your Subaru WRX STI’s engine bay appearance with the Billetworkz Engine Bay Cap Set, designed specifically for 2015-2021 models. This premium set replaces dull, faded factory caps with precision CNC-machined components that deliver both style and durability. Crafted from 6061 aluminum, each cap offers a perfect OEM fit and long-lasting resistance to heat and wear.

The set includes caps for oil, wiper fluid, coolant overflow, brake fluid, and power steering fluid reservoirs. Finished in your choice of vibrant anodized or tough powder coat, these caps maintain their premium look over time. Designed to match OEM threads and dimensions, installation is straightforward and secure, ensuring no compromise on performance.

Ideal for Subaru enthusiasts seeking a clean, upgraded under-hood look, this cap set enhances both aesthetics and function. Refresh your engine bay with quality parts tailored for your STI. Shop Billetworkz Engine Bay Caps at Subimods today and drive with confidence.

Why Billetworkz? 

Billetworkz has become a go-to brand for Subaru owners who demand more than just performance—they demand personality. Proudly based in Pennsylvania, we’re a passionate crew of enthusiasts who live and breathe the automotive lifestyle. From the first prototype to the final polish, our parts reflect a deep understanding of what Subaru drivers truly want—function, feel, and a custom aesthetic that stands out. While other brands follow trends, Billetworkz carves its own path—earning the respect of some of the most detail-obsessed Subaru owners in the world.

Weighted Shift Knobs – Feel Every Shift 

For Subaru enthusiasts who demand more from every gear change, Billetworkz Weighted Shift knobs deliver the perfect balance of performance and style. Precision-machined from stainless steel, our knobs are designed to add weight where it matters—giving you smoother, more deliberate shifts and a connected driving experience. With dozens of finishes, engravings, and shapes like our popular Lightbulb, Piston, and Teardrop, there's a perfect knob for every build style—from daily driver to full send. Built in-house, made in small batches, and designed to feel as good as they look—this is where the shift starts.

The Subaru Modding Essentials 

We know the mod bug runs deep in the Subaru world; that’s why we built the essentials that elevate both form and function. Our Weighted Shift Knobs offer crisp, smooth and more connected shifts, while our engine bay caps and interior accessries clean up the bay and add that personal touch. Every part is machined from high-grade materials and built to last, designed specifically for your Subaru platform. Whether you're starting your first build or finishing off a full setup, Billetworkz makes sure the details never get overlooked.

Billetworkz Custom 

Transform your vehicle's interior with Billetworkz custom engraved shift knobs, meticulously crafted to your exact specifications. Our made-to-order shift knobs allow you to personalize every detail—from unique engravings and logos to custom colors and finishes. Experience truly personalized automotive craftsmanship with Billetworkz.

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About Billetworkz

About Billetworkz

At Billetworkz, every product is made in-house with Subaru drivers in mind. From Weighted Shift Knobs that improve your daily drive to Short Shifters that transform every gear change, our parts are crafted for those who crave precision and individuality behind the wheel. Whether you're building a show car or a weekend canyon carver, our Subaru-specific components, including engine bay dress-up kits and interior accessories, let you fine-tune every detail to your exact style. No outsourcing. No compromises. Just pure Subaru passion—machined into every piece.

Style & Innovation

Style & Innovation

Subaru builds deserve more than just bolt-ons—they deserve innovation you can feel and style that turns heads. At Billetworkz, we obsess over every cut, curve, and finish to bring bold ideas to life for the Subaru community. Our shift knobs and accessories don’t just add flair—they’re engineered to enhance form and function, elevating every drive. Trusted by Subaru enthusiasts, track rats, and custom-builders alike, we set the standard for creative, high-performance detail without ever sacrificing craftsmanship.

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