Originally Posted by bobbob

Could people give details on cars they have messed up. Only ask as my focus RS mk 2 is mapped by them, and to be honest I've never really been over the moon with it. But as yet had no issues either. I was planing on having a bigger hp map done as from what I can gather revo 4+ does not feel as powerful as js420. Puma speed and jamsport from what I've read use DNA maps, would not use mountune as I don't use any of their hardware and jwr have had people switch from there maps to revo, revo maps apparently kill piston ring landings so who do you chose really.