Here's installation instructions
The pulley requires you get a 6 rib 56' belt available at most auto supply stores (ie. Pep Boys) for under $20. For the 6-spd no power tools or lift is required. Takes about an hour. And air impact gun is required for an auto trans car. This is a unique pulley and is hard to compare as most of the pulley kits I've seen are either rings bolted on (Kleemann, Carlson, Renntech) or rings that are welded on (Vaeth, H&S). There's a distinct performance advantage to a lighter one piece pulley. Kleemann is testing one to compete with the ASP pulley and my guess is that it will be comperable. They do already have one for the C230K sedans and older SLK230s that works really well but that's a different pulley layout and won't work on the Coupe.<br> <br>