BMW E9x M3 S65 Billet Valve Covers

The first 20 sets are being offered at cost—a thank-you to the community that’s followed this journey from the start. A set includes the Oil Baffle plates.  

Why Billet > Magnesium & Cast

While cast aluminum is widely used and generally effective, its manufacturing process—pouring molten metal into molds—introduces porosity, inconsistent grain structure, and potential warping. These factors reduce structural integrity and can compromise sealing surfaces over time. In contrast, EAE valve covers are CNC-machined from solid 6061-T6 billet aluminum. This results in a finer, uniform grain structure, superior tensile strength, and exceptional dimensional stability, making it the optimal choice for applications where heat cycling, sealing integrity, and mechanical reliability are critical.

When it comes to valve covers, this process delivers uniform strength, precise tolerances, and exceptional thermal stability—significantly outperforming cast or OEM magnesium components.

Hard Anodized, Not Powder Coated—For a Reason

Both hard anodizing and powder coating are respected finishing methods favored by experts, so we offer both—powder coating is available in any color on request. We’ve chosen hard anodize as our standard option because it penetrates the aluminum surface to form an integral oxide layer, rather than simply sitting on top. This gives you a finish that:

• Bonds to the metal, so that it won’t chip, peel, or delaminate under high engine-bay temperatures
• Provides a dense, corrosion-resistant barrier that stands up to oil, solvents, and heat cycling
• Adds virtually no thickness, preserving the precise tolerances and fitment critical to performance

While powder coating remains a cost-effective, color-flexible choice, our hard-anodized covers represent a premium, no-compromise solution engineered for the demands of serious builds.

Plug-and-Play Compatibility

Designed for direct, seamless installation, our billet valve covers perfectly fit your BMW E9x M3. Elevate your driving experience and engine aesthetics with a smart, performance-focused upgrade today.

• Material: 6061 T6 Billet Aluminum
• Finish: Hard-Anodized, Corrosion-Resistant
• Compatibility: BMW E90, E92, E93 M3 (S65 V8)
• Warranty: Lifetime Warranty
• Made In USA

 Don’t compromise—choose excellence, choose EAE.

Why We Made These Valve Covers 

A message from EAE Motorsports

This project started as a simple idea I posted a few years ago—just drawings and a dream, with no shop or resources to make it real. Along the way, I hit roadblocks, lost money to unreliable vendors, and almost gave up more than once. But the passion never left. Eventually, I found a small machine shop in Maryland whose work was spot-on. When the first set was ready, I flew the owner out, and we installed them in my garage—everything fit like a glove.

Now, after all the ups and downs, these covers are finally in production. Whether I sell one or a hundred, just having them finished and on my car is a win. If you’re working on something of your own, don’t stop. The process is the reward.

Go behind the scenes from CAD to final prototype and see how each cover is engineered, machined, and brought to life. Watch Here.