I bought a cat back exhaust system from Stillen. Paid to have it professionally installed. It would not center. The pipes were pushed to the left and not the correct distance from pipe to pipe. It took over a month to convince them to look at it. They wanted photo after photo after photo. When they finally took it back they acknowledged it was the worst quality issue they had ever seen. Sent me a second. Fit better but still not exact. Done with them. The customer service guy (Mizael) was professional, There VP' was a coward. He was always out of the office or running errands'. Still don't know his name because he was protected. I will never so business with Stillen again.