Add some additional reliability and engine bay styling with the Mishimoto Subaru WRX 2002–2007 / STI 2002+ Aluminum Coolant Expansion Tank. Stock coolant expansion tanks are prone to failure after years of constant temperature variations. The Mishimoto tank is constructed from durable, TIG-welded aluminum with barbed fittings for optimal durability and longevity. This expansion tank provides a 50% increase in capacity compared to the stock unit. It features a polished silver or anodized black finish that will look great in your engine bay, and it matches the Mishimoto Subaru WRX/STI Performance Aluminum Radiator! The Mishimoto Coolant Expansion Tank is engineered for perfect fitment in the 2002–2007 WRX and the 2002+ STI! As with all our products, this expansion tank includes the Mishimoto Lifetime Warranty

• Direct fit for the 2002–2007 Subaru WRX and 2002+ Subaru WRX STI
• 50% greater capacity than stock plastic expansion tank
• 100% aluminum, fully-welded construction for maximum durability during repeated cold and hot transitions
• Leak-free welded barb fittings
• Fits with stock and Mishimoto radiator caps
• Polished aluminum finish matches the Mishimoto Subaru WRX/STI Performance Aluminum Radiator
• Mishimoto Lifetime Warranty