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  1. General 09 Up CTS-V Questions
    So i got my car retuned yesterday and swapped my plugs out for BR7EFs along with adding a NGK wideband kit. Did a bunch of road tuning and dyno pulls no codes. Then left to head home on my 4 hr drive did a lil 1-3 pull and noticed a code a few minutes later. Brought it back around and read a...
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