ok so i have a bit of a prob...i went to meineke to see how much it wud cost me to get piping bent....it was too much so i decided to order the pre bent piping fit for a lude off the internet and then bring everything to them and have em put it all together....

only thing is they dont do headers and i cant put on the header, flex pipe, and cat because the outlet of the cat is gonna be 2.5" and that wont bolt up to the stock exhaust...and i want them to put on the exhaust piping cuz i dont have the materials to weld everything together....plus the rage header that im getting doesnt have a flex pipe on it and after i put one on its gonna be longer than the reg header and then it wont be able to bolt it up to the stock exhaust...so basically i have to install the header somehow then drive to meineke and have them finish the job

any ideas how this can be done??