Well, my car threw a P2096 code today and I have a feeling I need a new O2 sensor. I've never had warranty work done at a dealership so I'm not sure how they will feel about my Invidia and 15% pulley. Would those mods, especially the exhaust void the warranty on the O2? Is MoS usually ok with mods or are they uptight and **** like typical stealerships? Hopefully everything will work out becasue my broke college student budget would rather be spent on new pads then useless parts and labor....