It seems to be a fuel pump issue from what I read should I take off the jb4 before giving it to the dealer or does it not really matter and just turn back to stock tune??
Black 08 n54 135i Alpina AT 71k
Engine: JB4 e40/93, BMS Tstat, AFE DCI, VRSF FMIC 5"(On Deck)
Exhaust: Active DP, n55 Mids (Next), Berk Ceramic Delete
Exterior: Cree LED AE, Matte Kidney, Ambergone, Tint Front 50%/2%/0% Rear + Taillights
Tires: Nitto 555 265/35, Nitto Invo 235/40