JB4, Catless DP's, 91 oct, 4000ft elevation, which map?
So I just installed catless downpipes over the weekend. I am running them with my JB4. I live in El Paso TX which is at 4000ft elevation and only has 91 octane fuel. So my question is, which map should I run? I was told that Map 5 (autotune) doesnt work good at my elevation, and Map 2 says it is for 93 octane. Should I stick to map 1? Any suggections? Thanks
07 e92 335i / SGM / CORAL / Aero Kit / JB4 / BMS DCI / VRSF 3" DP's / Eibach Pro-Kit