I ditched the spare tyre a long time ago like many people. Since then, is it my imagination, or at high speed does the front end feel a bit light? I have since fitted a heavy duty battery which was such a big lump i had to remove and refit a new battery holder frame, but i do still sense the front end feels a little light at the top end compared to before (i did remove the bottom lip also as speed bumps make it impossible to use my NSX as my suspension is a little lower than usual). I guess the combination of the two is bound to have an effect. Wonder if a diffuser might stabilise it a bit?