E30 FBO - stock turbo 2nd-4th _19-24psi This was a 2nd thru 4th gear pull. The car is an 11' e92 N55 FBO w/stock turbo and 177k mi. MHD OTS Stg2+ e30 tune w/ XHP Stg3 TCU flash. Using 1 step colder plugs and Delphi coils Walbro 525 w/stock HPFP