So a few days ago I ran to the store because I had a craving for sour patch kids. It's only 5 mins away. When I got back I was backing my car into the driveway and the engine sounded louder than normal so I got out and popped the hood. Sounded like loose change on top of the motor, and it was pretty loud. First thing I thought was valvetrain, but then I remember reading about the couplers wearing out in the supercharger. I was going to replace it when I did my stage 3 but decided not to. Anyways, I went right in the house and ordered a new one from ZZP, but it's been almost a week now and I can't get it to make the noise again. Think it was the coupler or something else? The car has 56k miles on it.