Originally Posted by enrita
so you change tune, same setup and missfires gone?
That's what I understood. May be that's what BIGTOM should have tried. I haven't followed his thread recently, but didn't he borrow your JB4?
SOLD --'07 E90 335i, PTF COBB E50, HFS4, ER CP, ETS 7", AA DP, Vishnu Exhaust, DCI, ACT, Nitto Nt555
'10 E92 335i M, 6MT COBB v3, ER IC, ER CP, VRSF DP, Fuel-it st2
installing soon: Mfactory LSD, , powerflex subrframe bushings