People have had 235 on 18's before. If you are going with them on 17's I would sya you are probably better off looking for a 40 series tire.15.9 @ 86.7mphInjen CAI, 55mm TB, P&P Intake, Crower Cams, Hooker Header, ERT/Catco Cat, GS-T Muffler, AFX UDP, Crane Ign Amp, S-AFC