For a better experience, please enable JavaScript in your browser before proceeding. I have listen to other things from flowmaster and they sound a little quiet to me. Not as loud as I was hoping for but i'm still satisfied.

i have 40 series on as well and wasnt loud enough after the first week or so. I loved mine on my GMT 900 '07 and recieved compliments all the … Could be just a fluke though, who knows.

I am thinking of deleting the resonator and dumping past the axle but I am nervous the v4 mode is going to give it an extremely bad sound. i want a loud aggressive sound and am hoping someone can help me decide because i am torn between the two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by Bradley21sanders » Feb 24 2015, 10:06pm, sierra super right back flowmaster engine first nice still think silverado truck front, Users browsing this forum: No registered users and 9 guests. If you like straight pipes then a 40 series won't be loud enough for you, trust me I have ran both on Chevy trucks. ive heard the 10 series do not sound anything like the "flowmaster sound". Have you decided between the 10 and 40 if so how does it sound on your truck. I feel your pain, I have a 2015 1500 got a single in dual out 40 series system put on I'm wishing now I would have went with the 10 series. Feb 10 2015, 11:34pm. So not bad, he did some work for me over 10 years ago and they are still straight as an arrow and that truck has seen hell lol, The 10 is going to be obnoxious. Re: 2014 Sierra Flowmaster Super 10 or Super 40. I had the super 10s on my truck and as much as I liked it I had to change to the 40s it was just not the right sound for the look of my truck. I was thinking a super 10 or 40 series 3 in 2.5 out. I want a nice deep throaty sound with some mpg and horsepower gain, any recommendations?