FITS for GM LS LS1 LS2 LS6 cylinder heads with cathedral intake ports and Compatible with 2005-2007 Chevro-let Corvette, 2006-2009 Chevro-let TrailBlazer SS, 2004-2005 Cadillac CTS V-series, 2005-2006 Pontiac GTO;2006-2007 Cadillac CTS V-Series, 2008-2009 Saab 9-7X Aero, 2005-2006 Chevro-let SSR, 1997-2004 Chevro-let Corvette, 1998-2002 Pontiac Firebird Formula, Trans AM, 2001-2004 Corvette Z06.
