View Full Version : Muffler Qestions??

01-07-2007, 02:15 AM
Does anyone know what size the in/outs are on the 06 2500HD Vortec 6000. i want to get a Flowmaster Delta 40 Series but i cannot figure out what size i need to get. Thanks !!

mike lane lawn care
01-07-2007, 09:53 AM
i believe 3" out and 2 1/2" in, but don't hold me to it. i know that on my truck it's that size, might be larger for the V8

01-07-2007, 10:01 AM
Pretty sure it's 3 inch on both ends. I had the 40 series on my old 2500hd with the 6.0. It did get really old pulling my enclosed trailer, the drone in the cab was awfull.

01-08-2007, 12:08 PM
if it wasnt my daily driver i wouldnt be doing it. but because 80% of the time i just drive around.... i was going to wait to put it on so i didnt wake up anybody while plowing.... but i guess i wont have to worry about snow. seemings it was 70 out yesterday. im getting ready to take the equip back out, i feel like the grass is gonna start growing again! anyways thank you for your help!

01-08-2007, 11:07 PM
I just put a turbo back, dual outlet SilverLine under my 07 powerstroke last week. At idle and slight acceleration there is basically no differnce in decibels (slight turbo whistle) BUT when you hammer it- oh yeah:clapping:

01-18-2007, 09:56 AM
Does anyone have a 50 series flowmaster installed on their truck? i still cant decide what i want. a full system is out of the question now so its just gonna be a muffler.

01-19-2007, 10:10 PM
The 50 sounds good. I don't have on, but a friend has one on his 5.8 Ford. Sounds good. I still love the sound of the 40 tho.

01-21-2007, 06:02 PM
For the 3.5 exhaust that the newer 6.0's has there is a very limited selection as to what mufflers you can use, without going to the non-street legal race series. Your going to limited to either the big-block or HD series truck mufflers, I tried puting a 40 series on my truck and was told that that small of a muffler will choke the 6.0. I have a HD truck muffler on my truck, and it's OKAY...you definitly notice it and it has a deep mellow sound, but it's not a real "HOT DAMN...WHAT KINDA EXHAUST YOU GOT ON THERE" kinda muffler. It just give you a sweet mellow sound, that says "I HAVE A FLOW MASTER" thats it.

They tell me if you put on a high flow cat that will make it sound better.