So last year we popped the motor on our Ultra. Long story short in a heated fit I took a BFH to the Briggs so rebuilding was not an option even though the broken rod ripped up the inside pretty good anyways. So I have been casually exploring options and even tried to get a way with a mower replacement, but the idle issue proved to be too much. So dropping $ on a new ride was out of the question even though i really would like a Z. In addition a motorless PG is not worth a thing, and a new rebuild is worth more than the price of the kit. So in the end I decided to purchase the ultra X upgrade in hopes of getting a few more seasons out of it. Here are my findings as I install and test the new system. Package arrived well packed and relatively fast. I do feel that PG needs to do a better job of explaining this thing if they want to sell it. The salesman was helpful, but did not wow me with information. My first impression was that $1500 is a heck of a lot for a non commercial grade engine. Well after opening the kit I see that there is much more than just an engine and the price seems slightly more justified. Actually the invoice came with 2 line items. The first was the engine at about 400 and the other was the kit at about 1200. By the time you prep the machine all that's left is the frame, hopper, tank, trans, and throttle cable. This works since a few of the parts I removed where pretty worn anyways. Installation so far has been easy, but the instructions are vague and assume a good bit of mechanical and problem solving knowledge. So far the parts are fairly well designed, but I do not want to be around for when they need repair in a few seasons. You need to cut off the spinner gearbox mount and also notch the hopper control lever in this kit. I expect the install to run about 3 hrs before testing and adjustments. In the end I want to utilize the full ability of the pump and hope to add saddle tanks with the ability to carry 2 different mixes and spray at close to 1 gal per thousand on 1 nozzle set and standard 1/3rd on the other set. I am not clear on this, but it appears it will only pump while moving so I will be bummed if I can not wedge into corners for a quick squirt. More to come as I get time to deal with this. Stay tuned.