The rear suspension is the Xtra 12 with 2 Fox shocks and the front suspension also has 2 Fox shocks. The xtra 12 seem to be a little hard on the sliders so keep an eye on them, if you run the track a little looser it seem to help.
When I got my RXL it was a little boggy right off the line but I replaced the primary spring with an Erlandson Almond and that made a big difference. Can't remember what color I replaced the secondary with though???? You'll by happy with how hard she'll pull ya
Not sure if you have a Crappy Tire where you live but if you do they sell a maintenance book for older Polaris sleds which you may want to pick up. I think they sell it for like 25 bucks and will help with any maintenace you are planning on doing and it has a specific section for your RXL.
I am sure you'll enjoy your new ride and if you have any questions feel free to ask anytime.