Thread: HP increase
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      04-27-2017, 02:55 PM   #21
skim7x
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Drives: 335i, C63 AMG
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2007 335i  [10.00]
Quote:
Originally Posted by FSociety View Post
Having RaceChip in my X3 for 2yrs (no issues); but then using jb4 for 6 months on my current X4 N55 and now Bootmod3 (Flash) since December I can tell you big difference in all 3.

Power Delivery; Smoothness, Car Throttle; etc
What are your thoughts on the Bootmod3 vs JB4? Obviously it's a ECU vs Piggyback dilema, but the Bootmod3 was past my time -- is it relatively hassle free / problem free?

After Dinan --> PROcede --> JB3 --> Cobb, I was still having misfires here and there, I had black smoke puff out of my BOV all the time, started having a little smoke out the tailpipe, etc. More issues than it was worth... I just want more power that is 100% reliable.
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