I am running VRSF catted downpipe (was about 450 for them). No CEL, no unnecessary raspiness, although they are backordered. I ordered them In May and was expecting them to come end of June but they came almost 3 weeks earlier than expected. Great quality DP for the price, if you're willing to wait a bit to get it I would but if its a quick fix you need, I would check back and see if anything else could throw the code. Depending how many miles and if there was aggressive burbles on before that could lead the cat to burn out. (Happened on my focus rs).
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