Wheel Width

[blind_elk]

Information I was given a few years ago.

to decrease understeer:

Front needs - higher tyre pressure, taller sidewall (higher profile), more negative camber, lighter swaybar, softer springs, less weight forward.

[G0DZLR]

there are no ADR's requiring the wheels to match front and rear.

saying that u are only allowed to go 1" wider and increase the track by 26mm (13mm each side), so pretty sure legally your limit is a 18x7.5 +27. those rims i showed u are legal besides being 1/2" over width, but no cop should be able to tell what width they are. in other words if u get defected for them, u were gonna get defected for them regardless of whether they were legal or not as the officer cannot tell what size they are from the outside (unless the size is stamped on the outside of the disk).

as long as you keep your stockies you should be right if you get defected. just slap em back on till you get it cleared then put the wider rims back on. or do as someone sugested and buy yourself a GTR tyre placard from nissan (they have 8" or 9" as standard) to avoid complications