hi all.. was wondering if anyone had a rough idea of what it costs for an uprated box.. i had mine reconditioned but has started playing up after about 1k. although over 3 years.. crunches if changed quickly fron 2nd to third.. also after few hours on the motorway in 5th when come up to roundabout down the gears into 3rd it whynes and grates but once switched off for few minutes and going again its fine... any ideas