Spring rate more than doubles for H&R race.
F: 325 lb/in ~2 inch drop
R: 375 lb/in ~1.7 inch drop
Drop will vary car to car of course. I’m running RS-3’s 225/45/15 on a 15x7.5 wheel. Plus I have LCR camber plates, which effectively are a spacer on top of the spring. So I really have no chance to rub on my set up. 225/50/15 kumho V710's didn't rub on on this set up either.
Parking Lot Hero
2008 WRX daily driver
2003 ZX3 23D Autox Car 42 FSP
"Hella Functional - Raced, Not Hard Parked"