Quote Originally Posted by Sir C View Post
Depends who's doing it and who what you want from it.

The manufacturer has programmed the ECU for the best emissions results. If the new chip is programmed bluntly just for performance only, you'll fúck your fuel consumption and limit your engine life as well as potentially fúcking the catalytic converter. If it's programmed sensibly it will be more of a compromise.

Of course your warranty will be instantly invalidated and you might struggle with MOTs...

How much more performance do you need?

Caveat emptor.
It's 2.0 TDI on my Audi. I'd heard that essentially manufacturers use the same engine for years and mysteriously the BHP increases and this basically down to improving the mapping with each new iteration of the car.....conspiracy theory?

It's 174 BHP currently......a little more couldn't hurt