After I put it to the test I can confidently say that this tensioner is a great addition to any car's belt system. It installed easily and has greatly improved the tension on my car's belts. The automatic feature works smoothly and keeps everything running smoothly. The only downside is that IT'S a bit pricey, but i believe it's worth the investment in the long run. Overall, I highly recommend this tensioner for anyone looking to upgrade their car's belt system..