jb4 and proced were made for 135/335 and 1M has a different program.
I did chip and now have 15 psi (1.05 bar).
jb4
http://www.n54tech.com/forums/showthread.php?t=13768 like stock 1M 13psi(0.85 bar).
When I was a stock check from 135 had jb4, dp, FMIC to 160 km we were going smoothly and then it slowly pulls off, after chip he has little chance.