My Corksport system is leaking just a tiny little bit right before the race pipe. I took the car to their shop, since it's close to me, and had them take a look at it. It still leaks a little bit but it's not enough to bother me.
I will say that they have the best customer service I've ever experienced! I'm so happy that there are still companies like that that'll go the extra mile to make sure you're satisfied.
