get a o2 bung extension, it pulled the after cat sensors away from the flow, so they read less, and hence, no "holy shit you're running uber rich" Change Engine Lights...

UNIVERSAL O2 SENSOR bung Extension Adaptor check engine:eBay Motors (item 290335918545 end time Aug-31-09 11:49:09 PDT)


or just pull the CEL bulb out of the cluster....