i dont feel like starting a new thread so i will update this one. i had the cat and o2 sensor replaced today. the stock cat didnt appear to be in too bad of shape to my dismay. at the very least i have eliminated 2 variables from the equation though. so far i dont feel much of a difference. its going to drive me crazy until the tune is up to par. when i get home tonight i will rescan for DTC and see if the 1133 is still showing up.....mtf
lol crazy, i was updating when you posted
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2015 Audi SQ5
2000 Alero GLS Coupe - still in the family, but I don't drive it anymore
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