ok i have a velocity stack kit with the k&n filter and i am looking for a 3" pipe for it and i was wondering the pipe diameter size if the aem or injen SRI for a GSR so i can put my 3" velocity stack on it.. i would GREATLY appreciate it if someone had one of these and measured for me. and if i could put my velocity stack on the end of it without geting in the way

P.S. im not going on ebay to buy a 3" pipe i just bought one supposably for my application and it didnt fit...i would rather buy a brand that would fit just for the pipe.