I have DT LT headers & mid pipes/no cats and driving for a little over a week with no tune, CEL came on but was to be expected. If you are tuned you shouldn't have anything to worry about. You might not need the extenders, just depends on the heads you go with. I know for a fact that you will need them for Stainless works and my DT heads. Others i'm not aware.
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CenterForce DYAD Dual Disc Clutch, JDP stage 2 Clutch Reservoir, Rotofab CF CAI with Big Gulp and WW Reservoir Relocate, Stainess Works LT Headers and Retro Cat-Back with Cat Delete, MGW ST Shifter with custom Knob, CF Tail light Bezels, more to come...
Build Thread for my Z is in the works.....
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