2017 Sportsman 450 HO plastic/body

Just wondering if there is anywhere to buy decent aftermarket plastics before I go through a dealer? Had a little accident over the weekend. Need the whole back piece among other things. Thanks in advance.

Unknown tune

Ive got a mildy built, '07 rene 800.

Claims to have 12.5/13-1 compression pistons. Which I have the stock pistons in a CP Piston box along with a spec sheet, just unsure of compression ratio.

I have to put a new ECM in the bike, and am not sure what to do about a tune.

Bike also has snorkels, and a HMF Slip on.

Any input would be appreciated.