Well that much I knew. The problem I am running into is finding out how long the Flo Pro muffler is. The Aero 5050 is I believe 20in. Also, if i order the Flo Pro without the muffler, according to the pictures it looks like there is a straight pipe used in place of the muffler versus just a longer pipe. Is that the case in reality or are the other pipes actually longer requiring me to cut 20in of pipe?