Yeah they are easy to do.
You need an impact gun to loosen the stock cartridges and tighten the new ones in.
Traxxion sells a special thin 17mm wrench for tightening the fork caps to the cartridge.
Install with 7.5 W oil in each fork at around 100 mm from the top of the collapesd fork.
It measures close to 500ml / fork.
I think they charge $120 to do the work.
2013 Ducati Hypermotard SP, 2011 Husaberg FE570S, 2011 BMW S1000RR, 2010 BMW F800GS
2007 Husqvarna TE610 , 2003 KTM 525 MXC