Good day all,
I want to share my personal experience with FI test pipe. I have purchased the test pipe in July 2016 and it was okay until last week. I started to hear metal to metal sound and when I lifted the car, I found that the welding failed between the flange and the pipe.
https://photos.app.goo.gl/Jv1NYH1ejzAXFA6C7
This is really unexpected from a big company such FI. I sent them an email and I am waiting for their response.