93 Octane

Spash of E

OFT v4.03 Stage2+ Exhaust leak between block and manifold

Walbro 450 + new regulator 3rd gear pull

My car is a 2015 BMW M6 GC. After flashing a stage 1 tune @93 octane is was having what seemed to be misfires and the car just not working. My coils and spark plugs are less than 3,000 miles. Eldor coil and 1 step colder NGK.