Yeah Croft isn't cheap, last one I did was £149 for a Friday, Also the boys at Croft are very strict on the old db's, one over and they wont let you on.
Every session you get checked and some dude wonders about with a db meter doing randon checks. I beleive Croft almost lost its licence due to noice pollution, It's only been there for about 100 years and the locals who bought a house near the track complain about noise, Watch out on sunny out theres a patch of lighter tarmack can be abit slippy.
Standard exhaust going back on for my pending and future track days!! Going to do the flapper mod on it though