The syncros allow for some margin for error when shifting up or down, if you want to do it without the clutch. IMO no clutch is just lazy, yes it can be done, and easily. But use that left leg, build some muscle up.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