Motordyne ART pipe install issue
 

Curious if someone could help clarify? I bought the motordyne catback exhaust and art pipes. When installing the art pipes, I don't know what to do about the third bold on the headers to art pipe flange. The diameter of the one threaded hole of the flamge is too small and has a coarse pitch thread. All 10 bolts supplied with the art pipes do not fit. Do I need to drill the one threaded hole per flamge to fit the supplied bolt through? The instructions do not discuss this. I have a 2014 370Z if the year matters. Thank you

I would try giving Motordyne a call. They were quick to answer questions over the phone and through email when I had to reach out to them. Good luck!

Thank you. I tried calling and the number just rang and rang.

Hmmm, thats weird. I have a 2014 370z also and didn't run into any drilling to fit. I did **** up and pull one of the stock bolts outta of the header to cat pipe which added an hour to the time because I had to clean up the bolt and put in another. Can you take a picture?