Introducing GoldenWrench’s BMW S58 Engine BLACKLINE Performance Cap Set. Designed and produced in house to the same high precision and quality found across GoldenWrench’s lineup, this set gives the factory oil and coolant caps a cleaner, upgraded form factor and adds a fresh option to the BLACKLINE product family for the next generation of M vehicles.

Upgrade the plain plastic factory oil and coolant caps with the BLACKLINE Performance Engine Cap Set. Each cap cover is CNC formed from T6 aluminum and anodized in your choice of three colors: Anthracite Grey, Blue, or Red to complement the factory engine bay. Logos and detailing are completed using GoldenWrench’s precision 3D milling process, machined directly into each piece for a crisp, premium finish.

Fitment is for S58 equipped vehicles only, including F97 X3M, F98 X4M, G80 M3, G82 M4, and G87 M2. Each set includes a Billet Oil Cap Cover and a Coolant Tank Cap Cover. These are not full cap replacements. The billet covers mount to the top of the factory caps and install in minutes.