You can drop all kinds of money on a bearing kit and go thru the bearings just as quickly. Consider bearings an expendable part. I buy a pack of the panther bearings 10 for $10. Replace them as soon as they start feeling a little gritty. Touring cars are EXTREMELY hard in bearings. There are untold amounts of forces being applied to them when you're racing. I always keep at least 8 bearings with me when i'm racing. That way i've got enough to replace all the bearings at each corner if need be.