my friend mandrel? yes he does custom piping and he will most likely make a bend, but it will prBABLY CONTAIN AT LEAST ONE RUBBER ELBOW JOINT OR SOMETHING SIMILAR. i'LL WORK ON THE SPECIFICS THIS WEEKEND AND TRY TO COME UP WITH SOME HOW-TO LINKS I FOUND ONE ALREADY ON A GEN1TEG SITE SOMETHING LIKE THAT.