Just got my IT-R 5-lug with wheels. Swapped it out of my buddy's hatch and replaced it with Si-R brakes and brand new Rota red GT3's. Anyway, he used his stock brake booster w/master cylinder and 30/30 proportioning valve. Stopped on a dime, never any problems for about 2 years. Anyway, I prefer to do it complete when I install it. What are good prices for brake booster w/master cylinder appropriate for the 5-lug set-up.

Oh yeah! Gott-daym, the IT-R brakes were significantly heavier than the Si-R's.