So I have a 2013 mustang gt with a borla "S" type car back exhaust but I have this weird noise coming from the front end air of sounds like when you were a kid and you put an aluminum can on the rear wheel of your bicycle to make that dirt bike noise. Does anyone have any idea to what this is?
So it's with respect to RPM's. If you are sitting still and rev it, you hear a tick? I'm guessing that's the noise you were trying to explain. Can you upload a video possibly? Could either be a motor tick, which I hope not. Or something loose in the exhaust.
Sounds to me like an exhaust leak or rattle. I would get under it and double check that everything is right and that your exhaust isn't touching anything and rattling. I just installed LT's and my OTA pipe is resting on the panhard brace giving a VERY annoying rattle. When I install my Steeda ultralites I'm going to fix it