Mishimoto Aluminum Expansion Tank for 2013+ Ford Focus ST / 2016+ Ford Focus RS Color:Wrinkle Red This reduces cradle movement

This reduces cradle movement

Reduce Engine Movement

The COBB EcoBoost Mustang Intercooler Upgrade is the easiest way to drastically improve power when coupled with tuning from the Accessport

Extreme (No Mufflers w/ Resonator) or Standard (Twin-Mufflers w/ Resonator)

Mishimoto Aluminum Expansion Tank for 2013+ Ford Focus ST / 2016+ Ford Focus RS Color:Wrinkle Red This reduces cradle movementAdd some reliability and engine bay styling to your Focus RS ST with the Mishimoto RS ST expansion tank. This tank features internal baffles to prevent coolant starvation from overflow ports on the engine. Also, during high speed cornering, braking, and acceleration, the internal baffles reduce coolant sloshing. The engineers at Mishimoto have included a sight tube to allow for proper observation of hot and cold coolant levels, making engine