986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Will aftermarket headers and a cat back exhaust throw a CEL?

05-17-2008, 10:33 AM

I have a 1999 2.5 box and want aftermarket headers and muffler. Will it cause CEL?
If it will, what can be done to correct it?

05-17-2008, 10:33 AM	#1
99986 Guest Posts: n/a	Will aftermarket headers and a cat back exhaust throw a CEL? I have a 1999 2.5 box and want aftermarket headers and muffler. Will it cause CEL? If it will, what can be done to correct it?