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 1990 - 2005 Subaru Legacy, 1998 - 2002 Subaru Forester, 1998 - 2016 Subaru Impreza, 2000 - 2000 Subaru Outback, 2005 - 2006 Saab 9-2X, 2013 - 2016 Subaru BRZ