Chaps, there are loads of suspension options out there, but if you want 40-50mm drop you don’t need B14s. You’re paying for an adjustable ride height set up that you don’t necessarily need.
For less money you could get some quality kit that isn’t height adjustable but rides even better than the B14s. Many people on here have used Koni shocks with H&R springs supplied by
@CRS Performance and all have raved about how good they are. They’re also a fair bit less expensive than the B14s.
I have B14s, but I wanted the height adjustability that they give. If you don’t want to adjust and only want to go 40-50mm down then Steve at CRS is worth chatting to.