This product is compatible with a range of vehicles, including the Holden Crewman VY from September 2003 to October 2004, equipped with the 5.7L LS1 (GENIII) V8 16 Valve OHV MPFI 5665cc engine. However, it is not compatible with the Holden Crewman VZ from August 2004 to September 2007, also equipped with the 5.7L LS1 (GENIII) V8 16 Valve OHV MPFI 5665cc engine.