It is simply the best bang and quality for the buck. THE FOLLOWING PRODUCT IS COMPATIBLE WITH: 2007 – 2010 Acura CSX TYPE-S (2.0L DOHC 4cyl; 6-speed; Canadian model), 2002 – 2006 Acura RSX TYPE-S (2.0L DOHC 4cyl K20A2, K20Z1, 6-speed), 2006 – 2011 Civic Si (2.0L DOHC 4cyl K20Z3, 6-speed).