05-19-2019, 03:43 PM | #1 |
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Gutting stock pipes but keeping cats
I would like to go stage 2 but don't want to deal with the headache from the smell and emissions that I'd deal with if I went catless, so I want to go with high flow catted dps. However, I don't see much of the point in buying an aftermarket set so I'll be gutting my stock downpipes myself. My question is will it be possible for me to remove just the primary cat and make the dps high flow(400 cell I think)? I don't know much about downpipes or cats so Any insight will be appreciated.
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05-19-2019, 04:01 PM | #2 | |
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05-19-2019, 04:13 PM | #3 | ||
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05-19-2019, 04:23 PM | #4 |
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You would have to be extremely careful if you were to chisel them out, depends how much gap there is between the two. Keep checking all the time. If you opt for cutting open I would just use an angle grinder, cut all the way around in between the 2 monoliths, knock the 600cell one out and weld back together.
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05-19-2019, 04:28 PM | #5 | |
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05-19-2019, 04:43 PM | #6 |
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To be fair you will probably have 1" or so of gap. The 2nd o2 sensor reads after the 600cell side of the cat to my knowledge. I'd use a long drill bit, hold it against the side of the cat up to the 2nd o2 sensor hole and mark the drill bit with paint, that way you will know when you're just about there. From there on gingerly chisel the rest out bit by bit from the top. Once you get almost there, keep checking and don't hit to hard. With the gap you should be safe.
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05-21-2019, 09:57 PM | #7 | |
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