Id like to pick your brain about some issues ive been having. short version.. 06 GT bama X4 tuner and Air Raid Race CAI, Pypes violater exhaust. Ive talked to Bama and American Muscle multiple times about this. I have a terrible valve rattle( ping) when i open her up. Hard acceleration from a stop or at speed passing cars, race tune or Eco tune. They adjusted the tune to compensate for the Ethanol NO LUCK. Im going to be datalogging it soon ( laptop battery took a dump on me). But i was thinking the last time i turned off the TCS to leave some road stripes i did not hear the ping I tried it today on the way to work ( not hard on it just aggressive) No noise and really strong acceleration. Could this have been my problem all the time? With the TCS on and hard acceleration the CPU is saying OH NO YOU DONT.