Endurance Motorsports

I recently bought an awesome 02 GT. I bought it on ebay for a rediculous price. When I drove to pick the car up, I realized that it had much more done to it than I knew about. There is a lot of suspension work done. From the owner I learned that all of the modification were done by a company called Endurance Motorsports. I have tried to figure out the contact information for the company multiple time but have had no luck finding anything. Does anyone have any information that could help me out?

The reason that I am asking is because they installed an adjustible suspension. When I got the car it had an exhaust that dumped out in the middle of the body. This was extremely loud so I installed flowmasters. The problem this created is that the sway bar for the rear suspension has a ball joint that bumps into the exhaust when I hit a decent bumb. All I want to do is raise the suspension in the rear a half inch. This would help to reduce this problem.

Does anyone have any information on how I could do this or know how I could figure it out?