I am with Chris on this one. I think they are a waste of time. Yea you might gain a little torque, but WHY would you put anything out of a stock Ford Product and stick it in your car, let alone a part off of an SUV? THere are MANY MANY other choices out there. THe new FRPP cams are nice pieces. Crower makes an evegrowing selection of cams the 4V these days, as do other companies. I think the FRPP cams are a good choice. If I was going to put cams in my red car, I would go with the FRPP's.