Nathan Yarborough two meaning a single inlet on the muffler and two separate outlet pipes from the muffler. They make them 1 in 1 out, 1 in 2 out or 2 in 2 out. It doesn’t help with drone, mines got 2 out, drone is just part of flowmasters unless you get hush powers or 50 series and up, but it does balance the sound to have 2 out. Having drone on 2 sides makes it slightly less annoying believe it or not.
There is no way this thing drones it’s so quiet. Most people don’t even know what drone is. Hearing the exhaust is different than having that sound where it just gets in your ear. Hope this helps and maby it somehow does idk
i want the same series just for the sound not the noise it is awesome and the best sound i think for flowmasters, i have a mercury grand m. 4.6L V8 i want to install the same thing but i have my right cats removed and i needed to install a new ones and it is so expensive 900$ (with the sensors) in my country in Saudi Arabia i dont think i will install it before i got my cats fixed.
Wtf is this video of, that sounds like a completely stock truck bud. You want a good sounding truck? Them cut the muffler out and cats out and replace cats with magnaflow high flow cats and put a y pipe in place of your muffler. Then run dual 3" exhaust pipe it the back at 90° turn down then 45° behind the tires with the tips flush to the bed if the truck in each side. You will have the MEANEST sounding GMC in the northern states buddy I promise you that!!! You'll love the sound and it's worth the price!!! I've done it to all of my Gasser trucks and it's the same set up I'll use on them all and the ones to come.
I have to agree with Dirty Bird here. That’s a nice sound and I didn’t hear any popping or anything. Your the first one that I’ve come across where, you have the single in to a single out. Nice.
Aden Seay Yes flowmaster is a popular and reputable brand. Any local muffler shop should be able to recieve and install this setup for a rather inexpensive price.
Those Z71 decals are positioned wrong. They are to close to the tail light. I'm thinking that your truck is just a standard 4×4 and someone or you put those decals on. Ya they are in the wrong position.
