Penske also makes them too, they cost a bit at around 800 USD but are worth it and fit all MC21/MC28 R/SE/SP models.....you will love it, just save your money. They have all billet parts, order made springs, optional titanium springs, adjustable ride height and a wide range of adjustments to suit every rider...cost about the same as the Ohlins which are made from die cast parts...I prefer the Penske.
Jamie