The turbo in my E300 may need service/rebuilt in the distant future (making strange noise when cold, pushing more oil past the turbo seals than I'd like to see).. I was considering looking into a performance turbo for it.. or a custom built job as a replacement..

I am wondering what else would need to be done to the entire turbo system to gain more performance without the aide of computer reprogramming.. how do the finns do it on there turbo 606's??