Is anyone aware of an aftermarket belt tensioner allowing additional tension for the supercharged cars? I currently have the tensioner that Weistec supplied with my stage II kit but it is just a stock tensioner that was taken apart and had a higher tension spring installed. I am on my second one as the first they sent was not put back together properly. Looking for something of a little more precision and quality.
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.