A friend of mine just picked up a 12 plate VRS, (2L TDI)...Now the car is still under warantee for another 3 years I think so he is reluctant to get it mapped etc. I suggested the idea of a revo map and SPS switch..
1st question - Do the SPS switches worth with this 'mk' of car?
2nd question - If he switched it back to stock map when it went for servicing etc would they be able to see this and possible cancel his warantee?
