So I got my magnaflow today, for like 57 total and its in awesome condition but how many hangers should I use to hang it and how should I mount it? Parallel to the ground or at an angle up/down, etc? I already have the 2-1/2 inch piping I just have to extend it so it is atleast under my bumper. Here it is! First cheap thing I have ever bought where it was worth it.