Any idea what this sound difference could be? Mine has a weird "grinding" type sound, where as a friends stock c5 doesn't. Mine has a&a SC setup on it. i put my ear right up the the SC and it isn't as prevalent as when i put my head under the front of the car.
any help?
https://youtu.be/VtMUBx_QJTo
any help?
https://youtu.be/VtMUBx_QJTo