Oh, forgot to mention, had a guy pitted close to me with a white 2012 Boss. Best pass was 140 and that was the best pass by far. The others were much worse. He came over asking for help. Turns out he had just installed a Brand J CAI and tune for it before towing down. The car was surging and bucking, and even throwing the wrench light sometimes. A lot of the time I have a stock airbox setup in my trailer but this time I didn't so unfortunately I couldn't help him out. Of course the manufacturer's claim is that no one ever has problems with that particular product, even though people who actually own them have reported problems of this nature on a regular basis. Yet another victim.