Mishimoto Rockstar Coolant Expansion Tank for 02-07 WRX/04+ STi *Discontinued*

You’ve seen them on the racetrack, at music festivals, at sporting events, and now, you can bring some Rockstar energy to your Subie. Add some additional reliability and engine bay styling to your WRX or STi with this Rockstar Aluminum Coolant Expansion Tank by Mishimoto.

Vehicle Fitment:
2002-2007 Subaru WRX
2004-2021 Subaru STi
• Designed for use with the factory TMIC
• May not fit with a FMIC

*Discontinued*
As of September 2022, this item was discontinued by Mishimoto We have none remaining in stock.
• See more Coolant Reservoirs

Includes:
(1) Aluminum Expansion Tank
(1) Rockstar® Radiator Cap
(1) Lifetime Warranty

More Info:
Stock coolant expansion tanks are prone to failure after years of constant temperature variations. This Rockstar tank is constructed from durable, TIG-welded aluminum with barbed fittings for optimal durability and longevity. Providing a 50% increase in coolant capacity compared to the stock unit, this tank features an anodized black finish and a Rockstar-branded cap that will energize your engine bay with some killer style.

• Part Number MMRT-WRX-01ERKST
  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
• Rockstar® branded radiator cap
• Durable anodized black finish
• Mishimoto Lifetime Warranty