They all have the same a arms. They all have the same braided brake line.
Yes the sp tunnel is black. If you see an xm chassis woth a bare to tunnel, it is a sport model and has a carbureted engine
I just had my 2014 163 with 3" track out. I had the limiters 1 hole looser than stock. I have HD torsion Springs. I weigh 275. This this was a frickin wheelie machine. I tightened up the front straps and will give her hell next trip.
page 10 here----> http://www.monsterperf.com/2013_skidoo_spring_chart.pdf
i put those springs on mine, along with a big, heavy duty zbroz rear shock valved for my fat azz. here is a side by side compared to the stock springs
you guys can kill 2 birds with one stone here. you can gain storage AND keep that snow out of the box with doo's glovebox extension. a riding buddy of mine put it on his and i thought it looked kind of dumb, but after seeing how much more room you have and how it keeps the snow out, i ordered...
I bought a used 13 last year with this same muffler on (only 32 miles on sled) . I drove it in ND for 5 miles and was getting the same codes. I did some research online and found others with the same issue while running the mbrp. I sold it and got a SLP. Didn't have 1 single code in 500 miles...
few more goodies as of late.... skinz steering post and post forward kit, tether relocated, kill switch relocated, hand warmer and 12v plug inside the dash box, skinz bumper, sled solutions tunnel bag, doo seat storage bag, a few vents revalved/respring front 3 shocks, zbroz rear shock...