BMW 3-Series (E90 E92) Forum - View Single Post

wwc310 · 10-15-2013, 01:58 AM

I am looking to purchase a used JB4 for the n55 engine and had a few questions.

1) Has anyone had their JB4 break/crap out on them? Wondering if it would be worth it to just pay the cost for the new one and get the 1 year warranty.

2) Are all JB4s for the n55 on the G5 board? Or should are there older boards out there that I should avoid?

3) Do all JB4s (new or used), need to be cut in order to work with ISO?

10-15-2013, 01:58 AM	#1
wwc310 First Lieutenant 52 Rep 393 Posts Drives: e92 LCI 335i Join Date: Nov 2012 Location: Miami iTrader: (1)	jb4 n55 questions I am looking to purchase a used JB4 for the n55 engine and had a few questions. 1) Has anyone had their JB4 break/crap out on them? Wondering if it would be worth it to just pay the cost for the new one and get the 1 year warranty. 2) Are all JB4s for the n55 on the G5 board? Or should are there older boards out there that I should avoid? 3) Do all JB4s (new or used), need to be cut in order to work with ISO? __________________ 2011 335i e92 JB4 Stage 2, VRSF chargepipe, VRSF downpipe, Hankook Ventus V12 evo2s
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