Was going down the Ohlins/Wilber's road until a couple friends referred me to Hyperpro. Excellent service, quality build, and fantastic performance. I'm a believer. Sold my '07 to get into the last oil cooled GSA (2013); ordered it without ESA to do my own set up, but they also make an ESA kit.
http://www.wilbersusa.com/hyperpro-m...cle-shocks.htm