If you want to go flush without spacers, you are going to have to stagger your offset or buy staggered rim widths or both. I can say with confidence that if you get a 18x8" rim: Front - +35 (you may get a tiny bit of poke) Rear - +30 (you may fall a fraction short of flush), +25 will probably give you some poke I run 18x8, +40 front and rear and I almost get flush with my fronts and the rear is still tucked away. However, if you run a F35/R30 combo and use superlow or coilovers you will need your rear guards rolled (definite) and you may need your fronts rolled as well. You could buy a pair of 18x8.5 +40 and a pair of 18x9 +40 and you'd probably be more flush than a game of poker. However, I suspect (especially for the rear) you'd have strut/suspension fouling issues. As much as I would love the flushness different offsets provide, it would make tyre rotation a biatch (unless you can afford to get them to take them off every time you rotate). There is one possible way to make things flush legally with same rim widths but I need to check some measurements and stuff first. edit: If I were you, buy a set of 18x8" +35 and live with the fact your rears aren't flush.