Thread: Any 535’s running BOOTMOD3 or JB4?
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      06-20-2018, 04:35 PM   #15
pf10
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Drives: F10 550i 535xi
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Quote:
Originally Posted by hpgunitd12 View Post
Why are you adding jb4 when you already flashed your Ecu with bm3
What are the benefits of that ?
From what I was told by the tuner it adds boost control and the ability to gain even more hp
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