Hey I just installed the vibrant exhaust today and I got a few questions....On the stock exhaust...there is one hole where the 02 sensor goes...but on the vibrant, there are 2 and I dont know what the other one is for? I dont know if they forgot to send me a plug to go in there? Also, there are 3 screws that are up front near the j-pipe but the part where you screw the screws in is too close to the pipe to be able to fit all three screws in. I dont know what to do so i just somehow muscled out 2 to fit on there. The last thing is the exhaust seems to be rattling and I dont know if it just needs to be broken in or if there's something else i can do. Any answers would be greatly appreciated. I am going to fix it all tomorrow cuz i didnt have time tonite.