what can I do with 18x7.5 +40 fronts & 18x7.5 +48 rears for a 240sx?

[Strategos]

I finally found some wheels that I wanted for a long time for a great price but thiws is the exact quote he gave me on what size they are:

"Rim sizes 18x7.5, 5x114.3 bolts and 40x48"

I assume what he meant is:18x7.5 +40 fronts18x7.5 +48 rears

Will this fix stock S14 240sx? And what if I want coilovers or to put on some R32 big brakes?

Can I get an epxert opinion, those offsets sound awfull high but what I want to know is will it be toobad of a fitment and possibly dangerous if those offsets are just wrong? Thanks in advance for your help

[AZhitman]

Not great offsets, but if they're TOO good to pass up, a set of 20mm spacers will hook you right up.

They're also a tad narrow... More of a Honda Accord fitment.