There is no programmer that will add much more power on a stock machine and to run a bigger tire size you will need a clutch change. You did not mention what year it was so i will guess it is a 2010 with the 800 engine :?:  The first thing i would do is replace the EFI intake boot and install the one used for the XP version because of the restrictor and then remove the limiter spacer in the primary clutch when you get the kit to reprogram the clutch system for the bigger tires and altitude. Unless you replace the cam and do a exhaust system do not waist  the money on the ecu :idea: . Polarises do not respond as well as some other manufactures in this area and is a waist of money on a stock engine...

PS this was placed in the wrong thread so i moved it to where it should have been posted......

We know .

The way the 850 engine it configured is why they will not install it in the RZR.....

I hate to say this but yes your engine is shot and needs to be torn down for a rebuild .

Have you pulled out the plugs to see how it is burning. Glowing head pipe is usually an over rich condition because of unburnt fuel continuing to burn in the head pipe. It also could happen under a sevier lean conditions. If it is glowing a little in the dark that should be ok but a real bright glow is to hot.

This just an observation that i have seen over the past year that may help everyone. I do know that this site has a large number of Utah people here but there is also a lot of people from other parts of the country that use the site so if everybody can go to there profile and under location put where you live it will help for others to know what part of the country you come from :idea: .

I know all about it but i personally did not think the stock system was too loud. I have never used this system from Benz but for your needs it may be perfect for you. If you do get it let us know what you think.....