I had BBK 116 installed on my 2017 Springfield. One cylinder started misfiring but not all the time . It now misfires all the time after about 6mmths of use,now unridable and in the shop not throwing any codes however. Mechanic agrees something is wrong but can’t seem to diagnosis it. Been out of service for over a month now. Anyone else have this problem or similar. Had custom dyno and tune,but after base use put back on same problem,not the tune.