Hello folks, I have heard that getting the straight six 2.5ltr turbo diesels remapped can yield good results and had been tempted to try it on my old E34 525 TDS until I saw the price.
However, I have since seen the below two 'chip tuning' options on fleabay. However, I am rather dubious about them. Particularly as they seem to contradict each other, the second stating that boost is not ECU controlled and that you'll need a seperate manual boost controller. It then goes on to give expected power gains which surely cannot be predicted if the boost is being manualy set by the customer?
I was also wondering if the engine would work at all with replacing the chip as the ECU is coded to the injector pump.
Do any of you fine folks have any experince of these things or heard any stories regarding them?