Installed the SPL brake deflectors tonight. Passenger side went in no issues. Driver side doesn't line up with the control arm hole. (Mine was newer so it already has the hole SPL specified/designed for). Pretty frustrating, I just secured that side with a ziptie, and we will see if there is any vibration issues. There shouldn't be any clearance issues with brake lines and such.
I doubt I will notice any difference given that I'm not currently driving the car hard enough to notice any benefit. This build is about prep work though and doing it right the first time, so brake cooling has been taken care of!