Is it somewhat safe to run a MBC on stock boost level? After i put my walbro high pressure pump in, my car started running rich and i was wondering if i could run a MBC on stock boost level til i can find a Cobb Ap V1 to get tuned.

 

No. Because the MBC changes the curve shape as well, even if you dont change the peak boost.

 

thanks for the fast reply. I guess i'll just put one on when i get my cobb ap.