The Mishimoto X-Line Performance Aluminum Radiator is a thicker-core cooling upgrade engineered for the 2001-2007 Subaru WRX and STI (manual) and the 2005-2006 Saab 9-2X Aero. It uses a large three-row, 100% brazed aluminum core with TIG-welded end tanks for greater coolant capacity, durability and lower engine temperatures even under hard driving. The radiator includes a high-pressure 1.3-bar cap to raise the coolant boiling point, a second cap for the expansion tank, and a Mishimoto magnetic drain plug that captures metal fragments from the cooling system.
| Type | Performance aluminum radiator (X-Line thicker core) |
| Material | 100% brazed aluminum core, TIG-welded end tanks |
| Core | Three-row core |
| Radiator Cap | 1.3-bar high-pressure cap (plus second cap for expansion tank) |
| Fit | Direct fit; manual transmission |
| Included | 1.3-bar radiator cap, expansion tank cap, magnetic drain plug |
| Warranty | Mishimoto Lifetime Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2006 | Saab | 9-2X | Aero |
| 2002-2007 | Subaru | Impreza | WRX |
| 2006-2007 | Subaru | Impreza | WRX Limited |
| 2004-2007 | Subaru | Impreza | WRX STI |
| 2007 | Subaru | Impreza | WRX STI Limited |
| 2006-2007 | Subaru | Impreza | WRX TR |
