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  1. Exhaust
    I removed my secondary cats recently and I am getting a CEL that relates to the o2 sensors. Is this normal? I was under the impression that removing the secondary cats will not throw an o2 sensor code. I can't tune it out because I extended my cpo warranty and I really do not want to void the...
  2. CTS-V WTB Items
    For a 2011-2014 COUPE.. Not going to lie... I went with a muffler delete, and definitely can feel some lost power. I shouldn't have gone the super cheap route! If you or somebody has a corsa, borla, or even stainless works setup for sale let me know! -Must see pics and be in great condition...
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