I've not replaced the clutch in the newer model, but as said above it's going to be very similar, if not exactly the same, as the 2.3s. I've done a couple in the past on my '11 Roadster- not hard if you pay attention to the order of the plates coming out and then new ones going in.
Btw, I don't see a kit from Barnett for the 2.5s. I also contacted them to see if it just hadn't been added to their website, but they didn't respond. Customer service in 2020s, as it is....
Getting to the clutch on the 2.5 is the different part. If you're interested, this post will show you what's involved getting to that area....
Part 1 This includes valve clearance check and shim replacement. Also air, fuel, spark plug and coolant replacement, and bleeding the clutch. This is a work in progress, so edits and further information to come... Get the service manual here...
www.r3owners.net