Guys, I put my cobra in the shop last summer to get a tune and put long tube headers on. The car went in in perfect shape and came out quite a bit worse than it was. It was knocking in the front passenger side when I went over bumps. Come to find out, he left one motor mount off when he put the motor back in. He adjusted that but it is still knocking on the drive side when I go over bumps. It's like a popping sound and metal to metal sound. I would just like to get my car back to normal. Can anyone help please? Thanks!