[turnsignalslol]

Hey guys,

I was wondering if you needed a c@tl3ss d0wnp1p3 to run Map 3 or greater on the JB4 with a B46TU engine. I am currently thinking about purchasing a chargep1p3 and cold air intake but am also open to considering buying a d0wnp1p3 as well if it means that I could get more performance potential out of the JB4. Of course, I know that meeting the octane requirements for these maps are paramount though. It says that it is 93+ octane, so does that include 93 octane or do I have to go full racing fuel?

[ayyrabmoney93]

i was running map 3 and a custom map 6 with no dp on my 430i and was getting really great logs. Don't think its neccessary but depends on how strong your engine performs.

I would stay away from anything above map 3 if you're only running 93 octane.

[Mike_L]

Running illegally is not required for any JB4 tunes, nor is it recommended or endorsed under any circumstances.