So I recently purchased a set of catted AR DP's from a fellow member who had them installed on his 09 135i, with seemingly no issues. I got a call from the shop doing the install of the DP's on my car yesterday saying that they had a problem. They are telling me that driver side DP hits the secondary O2 sensor on the passenger DP when moved into position.
I called AR Designs and spoke with the owner and he told me that all of the DP's are made the same and that there should be no issue, especially if they were previously installed on another car. He directed me to their YouTube install video and I passed that info along to the shop doing the install. I am going to shoot a PM over to the member who I got them from just to clarify, but you can tell that they have not been modified in any way. The shop doing the install is very competent. It just seems weird. They said that they could move the O2 bung and that would fix the problem, but first they were going to try something else and hopefully that would work. That was last night and I have not heard back from them yet. Anybody have anything to chime in on? Any help would be great. Thanks.