It is bolted into the intake mani. Not sure if you can get to it under the car....but they may have to pull the intake mani off. As far as replacing it, that is just BS.
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
