Yes, i have an R Tech Custom Map Stage 2, only had it for about 4 weeks now, and i said, have been running on 6s (Platinum i think) for last 15 mths or so. Idle now is quite rough, ie. since the remap, but that could be down to a number of things, but for £30 or so, i think it might be worth taking a chance, see if it improves!?