Downstar Inc BMW G80/G81 M3 & G82/G83 M4 S58 Deluxe Billet Engine Dress Up Kit

Transform the look of your BMW G80/G81 M3 or G82/G83 M4's engine bay with the Downstar Inc Deluxe Billet Engine Dress Up Kit, designed to bring premium detailing and precision craftsmanship to your S58-powered BMW. Featuring over 100 precision-machined components, this deluxe kit replaces your factory hardware with billet aluminium beauty washers and high-quality socket head bolts for a clean, refined finish that perfectly complements the G8X platform.

Each component is CNC-machined from 6061 billet aluminium and paired with your choice of blue zinc, gold zinc, or stainless steel fasteners, allowing you to achieve a custom look that reflects your personal style. The Deluxe Kit includes 16 additional pieces compared to the standard Downstar G8X kit, offering more coverage and detail across the entire front end and engine bay.

Every fastener location has been carefully mapped to ensure a perfect fit and easy installation, with detailed instructions included for a straightforward DIY experience. Designed and manufactured in the USA, this kit not only enhances aesthetics but also showcases Downstar’s renowned build quality and attention to detail.

Key Features

• Designed for BMW G80/G81 M3 & G82/G83 M4 (S58 engine)

• 100+ piece hardware replacement kit for maximum coverage

• CNC-machined 6061 billet aluminium beauty washers

• Stainless steel hardware

• Includes fasteners for fenders, braces, strut mounts, radiator support, and more

• Deluxe edition includes 16 additional pieces vs. standard kit

• Precision fitment with detailed installation instructions

What’s Included?

• Complete 100+ piece hardware and beauty washer set

• Fasteners for:

  • Fenders & Fender Braces

  • Expansion Tank

  • LH Strut Sensor

  • Front Bumper & Grille V Brace

  • Hood Locking Hooks & Latches

  • Headlights

  • Front Radiator Cover (by bumper)

  • Strut Bolts, Radiator Support, Front Brace & Strut Bar

• Installation instructions

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.