Hey y'all, so Ive had my Ram 1500 hemi for about a month and I think it's time for an exhaust to help her breathe a little better. I have a K&N CAI and I havent really decided on a muffler yet. I was thinking of getting some turndown pipes just after the muffler. I just want to know if turndown pipes will effect the back pressure because the LAST thing I want to do is rob a truck of its torque. Also if anyone already has the turndown setup...does it drone annoyingly in the cab at all becuase one things I love about this truck is how comfortable and quiet the cab is. Lemme know whacha think...Thanks.