I just recieved my new Motegi TrakLite wheels in gunmetal. I bought them in 17x7, 42mm offset (so they should fit...... knock on wood). I plan on transferring my stock tires to my new wheels and fitting snow tires to my stock wheels..... but I've run into a snag.... I have the tire pressure monitoring system on my car. Correct me if I'm wrong, but I think the actual sensors are attached to the wheel valve stem. Does anybody know the part #? I want to have the sensors installed on my new wheels so I've been bombarding my local dealers with parts inquires (as usual, they've been giving BS about "only genuine Mazda wheels can have those equipped"). Oh yeah, I'm replacing the stock wheel locks with Muteki spline drive lugs (McGard sucks, I had a couple of them strip on my old Mazdaspeed). I've posted some pics below.