you got to call okinawa or send them an email
brian@okinawaimportmotorsports.com
jeff@okinawaimportmotorsports.com
all that other crap about extending the front of the car is bullshit you can do it if youre loaded but i wouldnt recomend that. as fir the firewall not really i never even touched that.
in order for me to tell you more tell me what model 240 you are getting s13 s14 s15? also what type of rb do you want to get rb20det rb25det rb26dett