i see all kinds of poeple on here asking how to get there g6 to go faster or rev higher well i'm here to tell you your promblem is solved... www.vectormotorsports.com just made on for all models of the car 3.5 3.6 and 3.9 i just put one in my 2006 gtp coupe and let me tell you my head wa against the seat the hole way to 140 mph well worth the money if your looking to drive dailiy and race on weekends 