[S50Sinner]

Many people here run the UD pulley on track with no impact on temperature, the water flowing slower through the engine just gets more exposure time, so inlet/outlet has a greater difference, but the same applies at the radiators so it balances out. It's still well within the functioning range of the system and as far as I'm aware has zero downsides unless you plan on running A/C at idle, which doesn't get quite as cold with the UDP.

If you're getting camber plates, slotting the towers is probably unnecessary.

edit: also I think the best thing I've done to the car was by far the clutch helper delete, it makes shifting feel waaay more natural.