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Just curious. I'm new to this turbo game. Will that down pipe eliminate cat? Will it throw a CEL? How much louder will it be if you install that with stock exhaust?


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The non-catted DP will for sure throw a CEL (though maybe not with a tune). Not sure about the one with the high flow cat. They will eliminate the stock cat, yes. The sound difference will be subtle coupled to the stock exhaust - maybe more spooling noise and a bit more grunt (based on past experience with a 2.0T, not with this engine)
 

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Just was reading this that's why I asked. It also say no CEL light at the bottom of page on there instruction thing.


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