Goldenwrench Blackline Performance BMW M Car Series Coolant Expansion Tank Cap Cover

Elevate your BMW M vehicle’s engine bay with the Blackline Performance Coolant Expansion Tank Cap Cover, now offered in a range of colors to suit your style. Following the success of our Billet Oil Cap Cover, this meticulously engineered piece brings a new level of sophistication to the standard factory coolant caps. Crafted  to precise tolerances, each cap cover redefines the factory component’s form factor, offering a premium aesthetic upgrade.

Each cap is CNC-machined from high-grade T6 aluminum and anodized in various striking finishes, including the race-inspired Edition Red. The logos and design elements are created using our advanced 3D milling process, delivering an exceptional level of detail and quality.

Designed to fit BMW models equipped with the N55, S55, and S65 engines, the Blackline Performance Coolant Expansion Tank Cap Cover is compatible with the large coolant tanks found in the following vehicles: E90/E91/E92/E93 M3 LCI, F22 M235i, F87 M2/M2 Competition, F80 M3, F82 M4, and more. Please ensure that your coolant cap matches the shape shown in the product images before purchase.

Each kit includes the Billet Coolant Expansion Tank Cap Cover and an installation guide, allowing for a quick and easy installation in minutes. This cap cover affixes securely to your existing factory coolant cap—no full replacement required.

Supported Models:

• E90/E91/E92/E93 LCI M3 (S65 Engine)
• F87 M2 / M2 Competition / M2 CS (N55 / S55 Engine)
• F80 M3 / F82 M4 (S55 Engine)

Please type out requested color code for IND Painted - Color Matched selection only

Upgrade your BMW M today with a perfect blend of style and precision engineering from Goldenwrench’s Blackline Performance product line.