Buckwild

Out of everyone that has put a cat back on, what about the flex pipe that the stock had? Do all cat backs have this?

Love they way that sounds. I want to do a single, 3" pipe, custom cat-back and probably go with a Magnaflow due to the fact they are stainless, many different choices and less expensive compared with a Borla. My question is oval vs. round muffler? I would guess if I went with round I would need a little longer one than a 18" oval to get similar sound results? Opinions please. I watched the Magnaflow youtube video with their cat-back single pipe system for the '14's and it was too quiet but that was a 22"muffler.

mzodarg- with the muffler delete does it sound good? I'm not looking for loud but a nice rumble, a guy posted a video of his truck under the topic "muffler delete" and I love the way that sounds.

Just had my 2014 Silverado Crew Cab4x4 6'6 " box 3.42 rear end to dealer for vibration but this happens at approx 30 mph at 3000 rpms under moderate to heavy acceleration coming out of a turn but they couldn't duplicate it. I also have noticed the tach surging when in 4 cyl mode at 1000-1200 rpms when going up slight incline but forgot to mention it to them. Have not noticed the vibration at 60 mph and up and I have Goodyear tires not sure which model. 3100 miles on truck but I have a topper so maybe the extra weight of that makes it not noticable. I also complained about a large hesitation when going up hill, letting off gas then trying to accelerate. The truck will do nothing to accelerate for at least a second (seems like forever) then will take off like nothing happened. Only happened twice. The dealer said it normal so the trans gears don't slam into each other. I think otherwise.