i'm looking at different exhaust options for my 6.0 2500hd. i'd like to keep it pretty quiet. maybe just a tad loader than stock but give it more rumble and performance and hopefully some mpg. can i get some opinions please

a good friend has a a setup off his 8.1 truck. it has a dual 3" in to a single 4" Y and into a 4" 40 series flowmaster and exits in the stock location. the price is right but i'm thinking it's gonna be loader than i would want. so what i'm thinking was either buy it and try it and if i don't like it look for a quieter 4" muffler to replace the flowmaster, or just go with the magnaflow or flowmaster dual in dual out and run dual pipes out the back.

 

Magnaflow 22"

I have that on a 6.0

Nice little rumble. Stockish idle.

 

You don't really need 4" exhaust on a stock 6.0. 3" single is large enough 3" dual is a lil much. I'd just change the muffler. If you put that 8.1 exhaust on it you'll definitely need a tune to compensate. IMO

 

A little info for the brainstorming.

https://www.performancetrucks.net/fo...highlight=dual

 

these trucks have dual exhaust into a dual inlet muffler and dual outlet into a single tailpipe from the factory.

the 8.1 exhaust i'm told are the same as the 6.0.

this exhaust was not intended for the 8.1, the reason for it being a 4" was he was trying to make a 4" mufflex style exhaust for his other truck(408) and after selling the truck he fitted it to his 8.1.

 

I know they come with Duals. I was talking about the size. Did the HD come with dual 3" or 2.5"?
The only people i know of on here running 4" exhaust either have a Dmax or F/I

It would probably work but it'll be a bit loud i think. My LT's ORY, 3" mid and Borla XR1 are a little quieter at low rpms than the Flowmaster Si/Do was on stock exhaust. Dont know what series it was tho. If you had to you could double up on the mufflers to make it a little quieter. At least with pipe that large it'll have a deep sound.

 

dual 3" in and out

 

heres something that might help you determine what size exhaust you need .. didnt get to read all of it, but it does sound interesting


http://victorylibrary.com/mopar/header-tech-c.htm


heres one for length

http://www.bgsoflex.com/bestheader.html

 

The 2500HD's come stock with dual 3" headpipes and cats that run into a dual in single outlet. At least any that I have seen. Alwys dual 3" iunlet and a single 3 1/2" outlet.

peace
Hog

 

mine is dual in dual out. right after the dual out they join together to a single pipe. which i would guess is about 3.5"