I recently purchased the PowerVision CX Tuner with a stage 1 NIC tune from Andy @ Pwrtune for my 2018 X3 XRC. I have the 64" 120 HP model and decided it was time for a little more power haha. I did a lot of research and decided that for what I was wanting and for the price that they are still selling their tune+tuners for, I couldn't really pass it up. My machine is totally stock other than a tire swap, (switched out the Liberty's for some Maxxis Roxxzilla's) and I tuned the suspension to Fox's recommended settings. So, back to the tune....long story short, I saw where pwrtune had a tune for a NIC, (non-intercooled) 120hp machine and decided that would work perfect for me, especially considering the current price. There were 3 options of the NIC tunes, that being stage 1,2, or 3. The only differences being a stage 1 is for a totally stock machine, stage 2 having a slip-on exhaust or cat delete, and a stage 3 for a full exhaust + cat delete. The gains range from the stage 1 adding 19-20 hp to the rear wheels, stage 2 adding around 24-25 hp, and stage 3 adding around 27 hp. I opted for the stage 1 bc I don't plan on doing too much to the engine or exhaust, and its supposed to work great with the stock clutching. I just took it out on it's first ride with the new tune and I can say that it feels great. I didn't get a chance to play with it after flashing it about a week ago due to crappy weather and my schedule. I went with some friends to a DNR park a few days ago with about 3,500 acres worth of quality UTV trails and was super impressed with the new changes. The machine was already badass but now it feels more refined and is very snappy. Not sure what the factory boost was before, but on a good straight stretch, I had no problem making 15 lbs. of boost and this thing hauls ass. I raced, (drug) an N/A RZR 1000 XP several times with no effort. That's not really an apple to apple comparison, but from a 30 roll, the RC left that dude like he was sitting still. I did have the speed limiters removed, raised the rpm to 8,600, and opted for the sport low in the tune. So all in all, 10/10 would definitely recommend and buy again. Didn't know a simple tune would bring this thing to life. Changing the tires from Liberty's to Roxxzilla's did give it a little different handling and it certainly has more bite, but the tune made a big difference. Just wanted to throw this out there, in case some one like myself was curious about a tune or tuner for the 120 HP machines. I know there are several companies that have tunes and upgrades for the 120 hp X3's, but I feel that the Pwrtune is one of the simplest in that they don't require an intercooler upgrade and they are or were still on sale for a damn good price. Side note......regarding the Roxxzilla's......they are badass. Definitely gonna stick with them.