Hello i am from austria and started customizing my E39 525D engine a few weeks ago.

I studied a lot and had help from a nice tuner which supported my modifications.

Now i got a tuning which fits nice without durationmap changes but custom remapping needed maps...

I did a lot of custom testlogdrives with testo and my next projects will be an Audi a4 2001 and a
318D BMW 2004.

I hope i can improove my skills here and help people tuning their BMW :)

Feel free to ask questions to BMW E39 525D engine tuning :)