Hey guys,any of you run oval pipes? I have always run mufflers,but with my new trailer,the muffs are catching the transition and snatching my collectors off. I need to lengthen the pipes and put the muffs closer to the axle. My current setup is as follows: TA 2 1/8 headers,bolt on collectors.1 foot of 4" pipe to ~6" case magnaflow oval race muffler and a turn down per side. I already drive my truck up onto ramps to get a good angle,but the dovetail on the trailer still catches the muffler on pass side mostly. Thanks...Fish