Probably depends on how the stock setup is.
I previously owned a Triumph Thruxton and the stock rear shocks were really bad. Even a cheap upgrade improved the experience dramatically.
But the Coober is still not a complete ECU right? So still equivalent to the FuelX Pro+ (but uses 3 sensors instead of the 2 on the FuelX).
Meaning, if you want to decat, use the Coober. If no decat, FuelX is fine.
I have the FuelX Pro+ and K&N filter. It definitely makes the bike run better without staggering but it only operates in low/mid rev range. I still think you need a new map to get top end.
https://www.24mx.se/product/handskydd-twenty-vapor_pid-PM-0052642
It’s this model. They work great but you have to move the levers one finger to the center of the bike.