bolt pattern: 4x114.3 offset: 40 size: 15x6jj Wheels/hubs -Clearance of wheels for Z32 brake upgrade is entirely dependent on wheel spoke AND wheel design, NOT on offset of wheel. -Wheel width/offset needed for clearance of coilovers is as follows (disregarding brake clearance): * 6" +54 or lower * 6.5" +45 or lower * 7" +40 or lower * 7.5" +34 or lower * 8" +30 or lower * 8.5" +24 or lower * 9" +20 or lower * Please note that this does not take into account variations in offset calculation by manufacturer, or tire sidewall bulge. This list also does not take into account differences in design of coilovers (esp. lower brackets on coilover kits which can cause changes in wheel clearance issues). This list also only applies to the FRONT WHEELS and is intended as a GUIDE for reference. Please note that this list does not apply for all coilovers and the offset needed to clear suspension will vary between wheels and also between different suspension types. -The LARGEST wheels that will fit the front of a S13/14 with stock fenders is 9" wide. The rear can take up to 10.5" wide with a very specific offset AND must dial in negative camber. To fit large wheels one must use negative camber to ensure proper fender clearance. Hub -S13 uses 30mm front hub bolt, S14 uses 32mm front hub bolt. Both chassis uses 36mm rear hub bolt. -Conversion to 5 lug on S13 chassis requires S14SE/Z32nonturbo rear hubs, and either 1) JDM aftermarket front S13 5 lug hubs, or 2) S14 SE front hubs + S14 spindle + S14 ball joint w/LCA (and redrilling of strut for larger strut bolt). -Conversion to 5 lug on S14 requires S14 SE front hubs and S14SE/Z32nonturbo rear hubs.