I have this exhaust on my car, and it is lowered about 2 inches. Everytime I take a hard right turn I hear it rubbing against something, I think it may be the control arm. Anyway has anyone else had this problem or should I take it to the shop that installed it and see if they can adjust it anymore.

Oh man don't take it to a shop. Roll the back of your car onto ramps, loosen all of the bolts and twist that mofo into place. The shop that installed my Apex did it right, but it looked like crap so I had to mess with it. I used a cooler and like 40 towels stacked up to hold the muffler in place while I tightened the bolts :)

Theres a heat sheild that might make some contact with a hanger on the muffler (by the tip)