Mr G’s ECU Remapping is Carlisle’s Premier ECU Remapping | Engine Tuning | Dyno Tuning | Diesel Tuning | Car Remapping | Carbon Cleaning Specialist, based in Carlisle Cumbria with 1000’s of vehicles now benefiting from our Remaps, Mr G's is the exclusive dealer in Cumbria for Regal Tuning York one of the UK's premier Remapping companies, covering Carlisle, Cumbria, Northumberland and Southern Scotland.