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Can this be done, ive just put the ron 98 map on and over the moon with it but just wondering if i now buy the over-run map can i swap and change between the two using the RS tuner programme??
Thanks
You can load as many maps as you like with the same unit,
I put my car back on the the oem map once because I forgot what it was like,
put the 98ron map back on after 5 minutes, car felt broken.