Centric premium rotors utilize an Electrocoating finish that provides long lasting corrosion protection. E-coating is a superior electro-statically applied finish designed to withstand 400 hours of salt water exposure without rusting. Phosphate finishes utilized by other manufacturers provide only minimal protection from the elements; these finishes are generally only effective for the shipping and storage portion of a rotor’s life. The addition of heat and moisture eliminates the effectiveness of phosphate finishes resulting in immediate corrosion once installed in the vehicle. Symmetric vane, split-core castings for uniform heat distribution; Black E-Coat anti-corrosive coating protects much better than competitors spray paint; Double disc ground friction surface for optimal performance and serviced life 2001 - 2004 Subaru Legacy, 2001 - 2005 Subaru Outback, 2002 - 2008 Subaru Impreza, 2003 - 2006 Subaru Baja, 2003 - 2008 Subaru Forester, 2005 - 2006 Saab 9-2X