my friend has z32 calipers/rotors to put on his 01 max---the oe bolts are 14 mm--the z32 are 12 mm---what can be done to fix this problem? looking to see if anyone had this issue before and what is needed to fix

 

Drill it out, or get helicoils, or get brackets and use 300zx calipers with bigger rotors

 

Some company's make new "bushings" or mounting sections that you can press out the old ones and replace them with the different size. I had to go this route when I put R34 calipers on my A31.