Hey guys, just wanted to share my current STU (BST

) setup and see if anybody has any tips/ advice. Car is currently pretty competitive locally as I took home 1st last season. But always down to see what can be done to make the car better.
2015 R DSG
-APR STAGE 2 high torque
-APR DSG tune
-APR carbon fiber intake
-APR stock location intercooler
-Bilstein B8s (new for 2025 season)
-034 camster mounts
-VWR springs
-H&R front and rear sway bars (both on full stiff)
-Girodisc rotors front and rear
-EBC yellow stuff pads
-CTS turbo muffler delete
-CTS resonator delete
-USP catted downpipe
-18x8.5 Motegi MR140 with 255/35 V730s
Car is a more than excellent street car at the moment as I drive it as much as possible on the road. Also curious if I will see much of a difference going to a narrower tire on the 18x8.5 wheels? I've got probably half a season left on the Kumhos and then I will need to get a new set. Should I get a 245/40?