I have run Coan and Quick Draw converters. Coan was a good converter considering it wasn't built for my car or a transbrake. I did crack the front cover but like I said, it wasn't built for a transbrake. My quick draw was built for my combo and it is very nice. Very reasonable prices and turnaround. Billet front cover option is nice because if I ever want to go to a 9" converter it can be reused for that one. Give Jason at multi performance a call and tell him you are looking at having a convertor built. He will help you out. 330 276-2831. Beep