Axel/ power commander questions

Whats up dudes? Im Ryan I ride a 2014 rzr 1000 love the car but I’ve been buying some upgrades and having some issues with the parts I’m buying. First off what are some good reasonably priced axels? I’ve broke the cvs on rhino axels, and bent the shafts on MTA slasher axels. I’ve looked into companies like rcv and turner but I’m not sure $900 axels are feasible.
Secondly, i bought a full exhaust from Bikeman performance and a Dynojet Power Commander V (PCV) based on their recommendation. My car ran amazingly for about 3 months, went to go drive one night and as soon as i started the car something wasn’t right. Pulled the Commander off and took it to the shop to be fixed under warranty. As it turns out one of the fuel injectors had stuck and was only allowing the motor to run on one cylinder. Got that fixed no problem under warranty, as soon as i got the car home from the shop plugged the power commander back in. As soon as i turned the key to start the car i could smell gas… hmmm wtf i look gas is running out my exhaust so i get on the phone to dynojet he says, "ahh must be a bad module." I sent that one in, they sent me another that i have been running again for about three months, a few weeks ago while riding out in utah during one real long race with my buddies, i noticed the car bog a few times but i could just burp the throttle and bring it back to life. Fast forward to last saturday I’m out for a rip with my buddies, when all the sudden while I’m driving, boom my car falls on its face, check engine light comes on, and the car acts like its running on one cylinder again. The thing this time tho was that it would come back to life after a few throttle pumps and and some choice swear words.
Saturday night i pulled the power commander off and drove it all day Sunday without a hitch, so i know its not my car causing the problem. i spoke to a guy at Dynojet today he says "theres no chance that i could have gotten two bad modules thats never happened." one thing i never did ask him while on the phone was about altitude, its nothing for us to ride from 7k to 11k feet. so i guess the question i have for you guys is anyone else running Dynojet PCVs? And are they giving anyone else the same trouble that they are me? thanks for the help