Filbee Posted August 29, 2023 Report Share Posted August 29, 2023 I've done a search and ready plenty of threads but not quite found the answers I was looking for... I'm chasing O2 sensor codes (P1276 came up again today, despite replacing the O2 sensors only a couple of months ago). I think my next move is to look at replacing the cats. But which option so I go for??? I'm not looking to up the performance especially. I just want it to run as well as possible, pass MOTs with no issues, and to not have keep getting O2 sensor error codes every time I take it out. So I go for 200 or 400 cell cats? Do I go for the ones that seem to have a smoother pipe run into the cat than the rather abrupt OEM cats? Do I go for stainless? Does it matter if they aren't "type approved" (is that a thing in the UK?) Let me know your thoughts and your own experiences please! Quote Link to comment Share on other sites More sharing options...
½cwt Posted August 29, 2023 Report Share Posted August 29, 2023 The only info I can offer is a page I bookmarked 'just in case' a while ago when someone noted them as a useful source, as well as ridiculously cheap such that you could replacement several times before getting tot eh rice of others!!!: BOXSTER - Cats2u BTW I'm assuming it is a 986, but you've got no Boxster model info in your My Ride in your profile. Quote Link to comment Share on other sites More sharing options...
dieselpower Posted August 30, 2023 Report Share Posted August 30, 2023 I fitted BM Catalysts to ours after trying everything else to fix the same fault code as you. Fitted them and fault code cleared. From memory I was £300 for the pair and sold the originals for £170 to a scrappie. I went for type approval as I did want any hassle later on, but your car would need one thorough inspection for anyone to notice. https://www.bmcatalysts.co.uk/catalogue/?search=1&search-location=1&keyword=&search-make=PORSCHE&search-model=BOXSTER&search-engine=3.2&search-fuel=Petrol&search-type=Homologated+Petrol+Cat Quote Link to comment Share on other sites More sharing options...
Filbee Posted August 31, 2023 Author Report Share Posted August 31, 2023 Thanks for the replies. I've ordered some BM cats for the princely sum of £260 for the pair. Let's hope they fit properly and get rid of the CEL 🤞 1 Quote Link to comment Share on other sites More sharing options...
Filbee Posted September 12, 2023 Author Report Share Posted September 12, 2023 New cats fitted at the weekend. They went on with no issues at all. I only had time for a quick spin round the block (about 4 miles) so too early to tell if the CEL is banished or not! Quote Link to comment Share on other sites More sharing options...
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