I had the TRZ, it was fantastic, immediate feedback. Heard a few stories about stock side mounts breaking, went to CPE all around. There are some others out there that are probably just as good. I like mine so far. If you read there was an issue with the allen bolts backing out and engines dropping => $. CPE stepped up with a bandaid, no issues with mine, installed with locktite, it is very solid at this point in time, I would suggest stock MM replacement no matter which manufacturer you go to.