I deliberately delayed reviewing this cover as I wanted to get quite a lot of miles on it first. So far this case has exceeded my expectations, it works perfectly, just like the original. I was very skeptical when I read that these A/M parts could fail soon and are not properly designed, but I couldn't afford to buy them at the time I needed to make the repair. I have a 12"N20 6spd MT, the gasket on my original cap failed at 75K. I did the swap myself at 80k and now 100k on the clock with noβ¦