Quote:
Originally Posted by MonsterM6
Is that stage 3 for an X5 F15 18'
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Here is the Jb4 you need
https://www.x-ph.com/burger-tuning-b...eries-n55-jb4/
For the newer models they changed the naming to stage 1 and stage 2.
Link i sent you is the most advanced JB4 which is stage 2