Originally Posted by BuraQ
Stock overboost, which only last for 7 seconds, is set to 14 PSI
Cobb AP depending on the MAP you select gives you anywhere 15-18 PSI average with 10°-12° timing average with the Stage 2 and up maps. WE are talking about 30-60 whp gains over the stock tune with supporting mods
I never read anything over 13psi with stock tune.. I am running pcars gauge, with boost read directly from BOV. Cobb stage + 1 aggressive peaked at 19 a few times.. Can't comment on accuracy of the gauge..
2011 e92 335is DCT - Cobb, ETS IC, AFE DCI, BMW PS kit, M3 control arms, various cosmetic improvements
2006 e90 330i 132k miles SOLD!