I just got my MSP,and i love it. Looks sweet and runs great, but it does seem to run a little rich. The previous owner had a custom exhaust put on from the downpipe back. He took the CAT out, and on other threads some of you guys have said that it will set a code, or a engine light. I work at FORD and test their development test tools, so i took one home and there were no Cells or Diag codes. Do you think it will cause a problem down the road. (scratch)