Chris D Posted March 23, 2022 Report Share Posted March 23, 2022 So, my 2005 987.1 S has just passed it's MOT with decat SS headers fitted. I was told it would occasionally throw up a CEL which it did, about 5 mins before the MOT. I carry an OBD2 reader in the glove box so that was quickly reset. I'm after having it mapped. Primarily to prevent the CEL coming up again but to get the best from the SS decat too. What are my options with regards to reputable mappers. Where are they? I'm East Midlands but happy to travel a few hours. What should I expect and how much am I likely to pay? Thanks Quote Link to comment Share on other sites More sharing options...
edc Posted March 23, 2022 Report Share Posted March 23, 2022 They some angled lambda spacers instead. Quote Link to comment Share on other sites More sharing options...
Patt Posted March 24, 2022 Report Share Posted March 24, 2022 something like this: https://www.ebay.co.uk/itm/253495575505?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A17gp1sRAsTzyxDNfyVwZwow36&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&itemid=253495575505&targetid=1596500855469&device=c&mktype=&googleloc=9050362&poi=&campaignid=15278604175&mkgroupid=135429446288&rlsatarget=pla-1596500855469&abcId=9300698&merchantid=101726973&gclid=CjwKCAjwrfCRBhAXEiw*nkmKmQY3srruRREfrg-FBp0euaebO8fULMcRUHQK4SA8ltQjK-G5hJmfdxoCWE4QAvD_BwE Quote Link to comment Share on other sites More sharing options...
Chris D Posted March 25, 2022 Author Report Share Posted March 25, 2022 Thanks. I've seen them, Design 911 sell them too. Whilst they'll fool the O2 sensors and in turn cure the CEL issue, I think I'd rather pay a few hundred quid extra to have it mapped out if I'm honest. I'm not clued up enough to understand how the O2 sensors work exacatly in terms of engine management but I would expect to see some performance benefits of a map due to the decat headers too. Quote Link to comment Share on other sites More sharing options...
Ninesomething Posted March 25, 2022 Report Share Posted March 25, 2022 Which headers did you get? Keep wondering about this myself. Interested that you got through the MOT. Quote Link to comment Share on other sites More sharing options...
Simon_R Posted March 25, 2022 Report Share Posted March 25, 2022 59 minutes ago, JonSta said: Which headers did you get? Keep wondering about this myself. Interested that you got through the MOT. Back boxes still have the secondary cats fitted. Quote Link to comment Share on other sites More sharing options...
Ninesomething Posted March 25, 2022 Report Share Posted March 25, 2022 Good point. Mine are gone..... Quote Link to comment Share on other sites More sharing options...
Chris D Posted March 25, 2022 Author Report Share Posted March 25, 2022 Yeh, still has oem pse fitted. Quote Link to comment Share on other sites More sharing options...
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