kung basic upgrades like IHE, kaya pa din pahintuin ng stock brake yan paps.
kung medyo OC sa braking power ng kotse, hanap ka ng bendix metal king, tanabe, ferodo formula, or win max brake pads tapos upgrade to larger diameter rotors (run stop rotors), kahit sa front lang, ramdam difference sa stopping power.
pero dun sa tanong mo regarding brembo, pwedeng pwede, kung wala mang specific for honda city, pwede ipa-fabricate to fit your car (kadalasan bracket lang ng calipers ang pinapa fabricate).
15s rims, saktong sakto. kung mag uupgrade ka braking system, smallest diameter ng rim should be 15".
dapat iconsider is yung wheel offset and wheel width. kung masyadong malapad, pwedeng sumayad sa fender or sa body ng shock absorber. better to test fit your choice of wheel with tires to know if there will be rubbing issues sa fender.
to be safe, 15x6.5 tapos +40 to +45 offset. kung malaki pa clearance, test fit ka ng 15x7 +40 to +45 offset din.
HTH