ZachCouch Posted May 12, 2018 Share Posted May 12, 2018 I've been swapping the headers and up-pipe on my Outback XT today. When I got to the point that I needed to take the downpipe off to access the up-pipe studs, I discovered there's no catalytic converter in my downpipe, but there should be. There aren't any signs that it's been removed, it looks like it just wasn't ever there in the first place. I've been getting a P0420 code ever since I bought the car (~2 months ago), so it looks like I've found the cause. I suppose it's just degraded and has been blown out the back. I haven't had any problems (other than the emissions code) as a result of the missing cat, but now I'm concerned, and I don't want to blow up my engine. I've been wanting to order an Accessport anyways. Will one of their OTS maps work with a gutted stock downpipe and a catted mid-pipe until I can order a proper downpipe to replace them? In the mean time, will I do any damage if I drive my car to work so long as I stay out of boost? Link to comment Share on other sites More sharing options...
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