300zx brake differences

SON240sx Automotive
1

hey, ive been looking into z32 brake upgrades…is there a huge difference between the 30mm caliper and the 26mm? it seems that the 26mm is a lot cheaper to get than teh 30mm
thanks

2

http://www.sr20tuning.com/brakes.html

3

Theres a 4 mm difference.