Need help with my wheel set up for s13
 

So I'm about to buy some wheels but I'm not so sure if the offset that the wheels have would clear my coilovers the wheels zises are 18x8+40 in the front and the rear 18x8.5 +37 in the rear with 215/40/18 all around tires ...what do you guys think ?

depends on what coilovers. i've had thoses sizes before on Stance coilovers and they did not rub.

1 - jack your car up and measure current distance from wheel to coilover
2 - go to http://www.willtheyfit.com/
3 - enter new wheel specs and compare

Welcome to Zilvia, please use this thread next time for small questions: #/f/showthread.php?t=297481

or the wheel fitment thread to get a better idea.

Thanks man and they are Megan street coilovers

18x8 +40 may be too low of an offset to clear the coils on the front. you may need to invest in some bolt-on wheel spacers in 15mm or larger size.