subframe connector recommendations

I'm looking to get subframe connectors for my 96 GT convertible. After looking on the internet I see that some are made for coupes and some convertibles. Any recommendations for the best ones to fit a convertible? Also, how do I determine if the car has the seat support bracket that I see mentioned in order to do a bolt-on installation?:shrug:
 
Yeah I took my subframe connectors to some generic muffler shop after being recommended by a friend. At first I thought they did a good job but then found out they mounted the subframe connectors on like an inch or so too far back and the welds were not that clean at all. Really sucks...