Just to offer some feedback to existing Fabspeed customers and future customers. Was just in communication with John Palo in the customer support area. I bought a set of Fabspeed headers for my F355 4 years ago. Had them installed during my engine out. Direct bolt on, no issues. Supplied heat shields more than enough to protect some heat towards the ac compressor and alternator etc.. However couple weeks ago, I noticed a ticking sound coming from driver side at idle. I am super OCD, so I noticed it right away when it started. I drove it that day, but kept hearing the noise. So took the car to my mechanic. It was tough to catch it but after careful inspection he identified a crack on the left header. Its not the tubing. A piece of metal was welded between two of the pipes, to lessen vibrations. The weld gave and caused a crack. So I wouldn’t say it’s a failure, more a minor design issue. which John confirms has been removed from the design. Unlike the blown out sausage casing of the stock header tubing when they fail. It was disappointing but relieved it was that. Got in touch with John, described the situation, and they will honor their warranty and have it resolved. It was simple, with no hassle or resistance and settled within 24hrs. John handled everything smooth. Rare with any company product for that matter, when trying to go through warranty. So rest assured Fabspeed backs their product if ever there’s an issue.