AP3X_FTW wroteThanks a lot for the answerThe KW clubsports utilize a helper spring, and the spring perch sits lower than most. The 18x10 et25 front wheels will need 5mm spacers to clear the strut. Your fender clearance will be no problem with 275's (depending on compound, ride height etc.), and negative camber will add even more fender clearance. I would go for 275/35/18 front tires, and 295/35/18 rear tires.
As many members have already figured out, you can ditch the helper spring and swap out the spring to raise the strut above the tire. If you perform this spring swap, you will not need to use spacers.
!I've ordered a set of ec-7 , I Will post some pics here ASAP.










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