[98SteedaGT]

I believe they make a component called an MIL Eliminator. I think it is used when you do not have cats and the rear two O2 Sensors. I am not sure of this as I still have all four of mine, I just went with BBK Stainless H-Pipe w/Hi-Flow cats (2) not 6. You may want to look for the eliminators and see if that will help.... I am fighting the Check Engine Light myself, but mine is being caused from the new MAF, Underdrives and Timing Advance I put on a couple days ago. The computer and I are going to sit down and have a nice little chat about it playing nice with the new parts.. hehe