ohh wow...that is pretty G-H-E-T-T-O but more power to you!!!
im guilty of that as well...i tried bending some pipe and fixing it to the end and getting cold air but i think because the pipe wasnt mandrel bent that it restricted airflow and i actually got less power
so i took it off and just went with the pipe and filter

OHH BTW pepboys should have the filter and pipe and all neccessary hardware for 50...it shouldnt be 50 for only pipe...