If you are running a larger aftermarket radiator this coolant expansion tank will help to keep your S550 cooler when pushing it on the track.

Also a lot of people don't appreciate the look of the OEM tank, and Steeda give you the option of a billet silver finish or a powder-coated black to help give your engine bay some more style.

Product Benefits:

• Direct bolt-in replacement 
• Fabricated aluminium for strength, plastic tanks may fail after repeated high heat situations
• Available in billet silver or powder coat black finishes to suit your engine bay
• Uses factory vented cap, bleeds pressure like the factory intended
• Billet aluminium neck has a built-in overflow
• Integral billet aluminium hose fittings are better looking and less troublesome than screw in fittings
  

Part number:
555-0600  Black
555-0601  Silver

Fitment: S550 Mustang - all