Description Competition Clutch Counterweight Kits for use with light weight flywheel Mazda turbo and non-turbo applications. Warranty This Part Fits Year Make Model Submodel 2008 Mazda RX-8 40th Anniversary Edition 2004-2007 Mazda RX-8 Base 2008-2011 Mazda RX-8 Grand Touring 2009-2011 Mazda RX-8 R3 2005 Mazda RX-8 Shinka 2008-2011 Mazda RX-8 Sport 2008-2009 Mazda RX-8 Touring.