This kit includes everything you need to perform the installation of the throttle body spacer. (1) Throttle body spacer. THIS SPACER WILL FIT ALL 4.3L & 3.6L FROM 2007-2014. WE HAVE OVER 30 YEARS EXPERIENCE, SPACER IS FULLY CNC MACHINED FROM 6061-T6 ALUMINUM, you will be proud to show off.