I'm pretty sure this is what the 2005-2008 guys who want headers need in order to not get a CEL.
http://www.extremepsi.com/store/prod...at=1007&page=1
http://www.extremepsi.com/store/prod...at=1007&page=1
Quote:
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VIBRANT PERFORMANCE OXYGEN SENSOR RESTRICTOR FITTING WITH ADJUSTABLE GAS FLOW INSERTS #24142 Oxygen Sensor Simulator Fitting with Adjustable Jets - Male end threads into existing M18 x 1.5 O2 Bungs - O2 Sensor Threads into female end - Use one of the three (3) included "jets" to help fool the O2 Sensor and eliminate Check Engine Lights Material: T304 Stainless Steel / brass washer |