bluefin 2.0 tdi 2003>

its fine - just like any other fairly generic 175-180hp remap - certainly makes the car more fun to drive, but if you are fwd you may need much better tyres than the factory ones, particularly in the damp/wet.
 
im think of the bluefin as ive heard service's could wipe a general chip settings? do you have any idea of the cost dunk, what tyres would you recommend?

Yes dealers could flash to original map, but if theres a software update your bluefin wont work, you'l need to buy new maps. Same as a remap
 
i think if you car got upgraded then superchips would sort it out for you, once you prove its the same car - they could do all that on-line. im sure you wouldnt have to buy new maps.

tyres - if you are a cheapskate then goodyear asymetric f1, if you are rich t hen ps2 or ps3 - nothing better than these 2 for all-round performance, particularly good wet grip for the winter too