JB4 Stage One Performance N55

After a lot of reading and research I have decided to install the JB4 stage one tune - From everything I have seen on various forums and posts it appears to provide the same or slightly more increase than a MPPK - Looks like the tuners are have a pretty hard time breaking into the N55 regarding wastegage issues and others. so for now the stage one is the best bet



Has anyone actually installed the stage one and what are the results - also anything to look for during install - one post I read said be careful to put where it will not get wet ==both positive and negative comments welcome



Thanks for the input in advance