I can't compare Redwood Öhlins DFV to MPP to UP (yet?), but I can say a little about my Öhlins experience so far.
Before buying our M3P, which wife & I picked up yesterday, we test drove several cars including a 2021 Polestar 2 with Performance Pack which comes with adjustable Öhlins DFV dampers from the factory. Going into the test drive I knew nothing about Polestar, and I had barely glanced at the P*2's spec sheet, just enough to see that
on paper it looked inferior to a Model 3/Y...
The suspension and handling on that Öhlins-equipped P*2 P blew me away. It's night-and-day better than a stock 2021 M3P or M3LR. When pushed hard over twisty roads, especially uneven back roads, the Model 3 is a sloppy mess in comparison. Ride quality in the P*2 P is better as well. All this despite the P*2 weighing significantly more. The difference was very clear to my wife too, even though she's not into sporty driving like I am.
Will the Redwood Motorsports Öhlins DFV give the Model 3 some of that suspension magic? I don't know yet, but I'll find out once my order for a "Street Performance" set arrives and I make time to install them. I know there's much more to suspension tuning and handling feel than just shocks, but I'm quite certain Polestar's use of (well-tuned) Öhlins DFV dampers played a big part in how well-sorted the P*2 P feels.
Are the Redwood Model 3 Öhlins worth a price premium over MPP KWs or UP or anything else? I also can't say that yet, I've only driven stock Model 3's so far.
Someday I'd love to get together with folks who have different aftermarket suspension parts on their cars and do some
test fun driving.