Pros: Extra power / more torque / safer overtaking / slightly better MPG if you drive it normally
Cons: Can wear brakes & tyres & clutch out faster if you cane it more, less MPG if you cane it, increased insurance costs
There is no real 'best' remap, it depends what you want to pay and what kind of functionality you want with your map. If you do a search this topic is discussed pretty much on the hour so there will be plenty of threads discussing Revo vs MTM vs Shark vs Bluefin....... All offer pros and cons and varying degrees of affordability.
I'd change your DV if it has it's original unit still fitted as the 07 cars have the rubber skirt version which tears. You need a revision D Audi one from which is about £40.
Try and choose someone local to you, there are some decent tuning houses up your way, so decide on a map and then look to see if it's available in 30-40 mile radius as its easier if 'owt goes wrong to get back there.
