Has anyone here with QTP's had any issues with leakage? I've had mine on my car for maybe 1500 miles and even when they're closed there is an obvious leak out of the side pipes, I've checked alignment about 5 different times to ensure there is no binding, even gone as far to run them without the side pipes with the units closed and its really freaking loud even when closed! Just curious to see if any other owners have had an issue with them, I noticed part of QTP's warranty excludes leakage, wish I would have seen that before I bought them!