Originally Posted by bigbro6785
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
I would do a datalog on map1 and map5, but let map5 adjust for a few days before logging. Send me the logs and we can see what works best for you.
Make sure to flash the latest firmware on your JB4 as well.