Quote Originally Posted by PSRB View Post
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
I have a 435d. Thinking of doing it too but not sure what gains I will get. Think it has about 340bhp but also 600 units of torque.