As part of returning my 986 Boxster S back to stock I am selling a set of headers and cat bypass pipes. I had these installed with both a stock muffler and an Agency Power muffler, the fit was perfect with both.
The stainless steel headers are in excellent condition with one O2 bung for the forward O2 sensor, I purchased them from a Rennlister who said they were early Fabspeed but they are not marked. Regardless they are excellent quality with smooth mandrel bends and a perfect fit. Should fit all 986 and 986S models. $550 OBO plus shipping.
The cat bypass pipes are Circuit Werks bought new about one year ago. Excellent condition and a perfect fit. They have two O2 sensor bungs, one is open for the back factory O2 sensor and the second is plugged. Should fit all 986 and 986 models. Asking $100 OBO plus shipping.
More pictures here:
https://photos.app.goo.gl/e51RNVvd7Alx04j53