Ok I have a brand new 4 lug single piston caliper and a quad piston caliper sitting here and the ears are the same, the holes line up, the brake lines are in the similiar place etc..

why cant u use the 4 pistons calipers on the single piston caliper hubs etc...

I see you will have to use the 5 lug rotors but in theroy u can redill the rotors to fit on the 4 lug hubs and with aftermarket 16" or larger wheels clearence should not be an issue..

What do u guys think

 

Transfer the distribution block and brake booster also.

 

in theory u should not have to yes it would be recomended but u really should not have to.. alot of big brake kits including the one I did and sell for dsm's is to go from a single to dual pistons setup and u dont have to.. I also had a friend that went from single to quad on I think another mitsi and he did not have to and his car brakes fine...

 

yep redrill the rotors and its good.

 

are u serious?

 

i had the same problem. the rotors of the tii are slightly larger.
when i was swapping to 5 lug from a tii. i had the issue of clearence with my n/a breaks. they would not fit. i had to get tii breaks to fit to the tii rotors. the rotors are slightly different in size and width.

i would NOT drill anything. if i were you i would research more about this. and check to see if your 4 piston callipers are for a tii or for 5 lug hubs. most likely it is.
and i am guessing your n/a and posibly even 4 lug
good luck . let me know how it goes

edit: woops totaly didnt realize i was speeking to spooled up racing. haha. any way. good luck buddy. post up with your findings. and any pix you can come across for this problem!!!!

 

SPOOLED..you want answers?.PM me..I did a Couple Conversions,and I have hit just about every "snag" possible..so,If you need a HOW-TO,I can give you the lowdown on what you need,what you do not have to change,what you can Get away with..ETC!