Edmundo2 Posted June 4, 2020 Share Posted June 4, 2020 (edited) Hi all. I recently fitted Topgear stainless headers with 200cel cats to my Cayman 987.1s. The fit and finished seemed great however I noticed a light ticking noise when pulling away slowly upto about 2.5k. My suspicion was manifold gaskets which looks to be the case so I'm going to try swapping to OEM gaskets. Also after 100 or so miles its thrown a CEL. On inspection it looks like Lambda sensor and I've been advised extensions should help sort it and stop light coming on. Has anyone else had experience of this? If so did you fit x4 or just x2 after the cats? Thanks for any info relating to either gaskets or extensions. Ed Edited June 4, 2020 by Edmundo2 Link to comment Share on other sites More sharing options...
George Constantinou Posted June 19, 2020 Share Posted June 19, 2020 Hi. I had same issue and fitted the 2 extenders a couple of weeks ago (from Profusion Exhausts) after the cats. I've now covered enough mileage to know that it worked! Link to comment Share on other sites More sharing options...
Edmundo2 Posted June 21, 2020 Author Share Posted June 21, 2020 Hi. Yes I got all 4 done and OEM gaskets. All good now! Link to comment Share on other sites More sharing options...
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