Centric Premium Control Arms offer improved performance for a wide variety of applications. Centric Control Arms feature O.E. Type corrosion resistant finishes or aluminum construction where required. Ball joints feature low friction polymer inserts or greasable metal to metal designs for easy maintenance and long life, where applicable. Engineering Validated & Certified in the U.S.A.. Advanced synthetics match OE specifications and materials. Application specific designs guarantee correct fit and function. Restored vehicle handling dynamics and responsiveness 1996 - 2009 Audi A4, 1996 - 2009 Audi A4 Quattro, 1998 - 2004 Audi A6, 1998 - 2004 Audi A6 Quattro, 2001 - 2005 Audi Allroad Quattro, 2007 - 2008 Audi RS4, 2004 - 2009 Audi S4, 2002 - 2003 Audi S6, 1998 - 2005 Volkswagen Passat