The exhaust camshaft gears in S54 engine have two tabs that come off the front of the gear. Occasionally, these tabs break off. Any time the valve cover is off of a S54, the cam gears and the VANOS system should be inspected. We have found many gears with one tab broken off already. Although the gear is almost $1000 by itself, if it wasn’t caught before the second tab broke, the customer could be looking at a $10,000 engine rebuild/replacement.
RRT Racing, having not been satisfied with the current options on the market for solutions to this problem has designed, developed, tested and has now produced what we feel is a superior product. More information will be posted here shortly about this new item along with some technical details and how you can purchase it.