I just recently ordered and had installed the SS SLP Catted X-pipe from americanmuscle.com. Now I dont know if it was a shipping error or this just happens in the aftermarket world but the left bolt to the header did not fit right. The guys told me it just wouldnt mate up perfectly and I had an exhaust leak. They told me to take it to a muffler shop. I took it to a dealership (my friend works there, did it for me at a cheap price) to just have them install. This just sucks cause I spent a decent amount on what I thought was the higher quality of the x-pipes but I guess all aftermarket parts have fitment issues? Oh well just wanted to rant. Im just mad I gotta spend more money now.