It has more dampening and is adjustable. It is also a drop in replacement on the base. I have replaced mine because I wasn't happy with the amount of dampening from the base unit at high speeds.
One of the finer points of having adjustability on a steering damper is the ability to get the right amount of damping as temperatures (and as a direct result, viscosity of the oil inside) change from day to day or season to season.
I had an Ohlins/Scotts damper on my race bike and only adjusted it 2-3 times a year.
It has more dampening and is adjustable. It is also a drop in replacement on the base. I have replaced mine because I wasn't happy with the amount of dampening from the base unit at high speeds.
I changed out the non-adjustable damper on my base to a Bitubo Nitrogen gas-charged adjustable damper. I noticed an immediate decrease in steering resistance but it also controls tank-slappers very well. Recommended if you ride hard with the front-end getting light often but can appreciate even more steering feedback and lighter effort.
Bellissimoto is the importer of Bitubo (from Italy) and gives forum members a discount:
Hey Jabba,
If you're not fighting your bars for control of the bike while hard on the gas exiting corners, upgrading something else on your bike that you would notice is probably your best bet.
I ran about middle to high range until I had my suspension set up, then I took it down to almost nothing. Properly set up the front wheel will protest a little when boogering the rear tire out of turns, but it will barely shake its head.