2008 Cadillac CTS Car chockes when accelerated

The car makes a loud noise when accelerating, like if I had cans tide up and pulling them, it chockes and feels like it loosing powers and isn't receiving Enough gas or maybe air.
I've looked it up and it seemed like it might be the engine coil, at least that what people around the Internet said, I just wanted to make sure and get a opinion of an expert, so I can know which parts to actually buy