The Moroso Coolant Expansion Tank is a cooling upgrade that helps keep temperatures in check during spirited street and track driving.

Built specifically for the E9X-generation BMW M3, it fits the E90 Sedan, E92 Coupe, and E93 Convertible.

Highlights

• Engineered as a direct-fit application for the E9X M3 platform

Fitment: 2011 BMW M3 (E9X / E90 / E92 / E93). Manufacturer: Moroso. Part #: 63850.