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      01-01-2013, 11:52 AM   #17
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Drives: '11 E92 335i
Join Date: Jul 2008
Location: Jacksonville, Fl

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Originally Posted by jzingerman View Post
I have been told that n55's are notorious for having problems.
1. Who told you this? That is a crazy, baseless statement.

2. You are running JB4 Stage 2 with ISO, E85 and a CAI. Change the charge pipe, secure all fittings, (including the Jb4 harness itself - take connectors off/on as they have been known to collect condensation and produce errors).

The n55 has been extremely reliable; you need to tune/mod in careful steps. The modifications you have installed increased your stock boost from 8-11 psi (at WOT) to 14-18 psi! If you are still using the stock charge pipe, you are asking for trouble as it WILL crack.

Who ever told you to not swap that out is a flat out idiot - run from them and never seek their advice again.

good luck.
-madmanhiker jax,fl