6.7 exhaust

bhudson · Jan 14, 2016

Looking at my options for an exhaust system for my '13. Who's got the best deals? Suggestions?

NickPic83 · Jan 14, 2016

I love my flo pro 4" dual exhaust, Sounds great. Decent amount of turbo whistle with a nice tone and I don't think it's too loud either

Notneb · Jan 15, 2016

Flo Pro, best fit

bhudson · Jan 15, 2016

Ok thanks. What are y'all running 4 or 5"?

Notneb · Jan 15, 2016

5" but really there's almost no dif between 4 and 5.

bhudson · Jan 15, 2016

No difference in flow or anything if planning on running the no limit intake after the exhaust is done?

dsmracing1 · Jan 15, 2016

Deeper tone with a 5" is all

Tom@BigTimeKustomz · Jan 15, 2016

I've got the Flo-Pro dual 4" kit as well. PM me for pricing!

WhiteMamba_Scorpion · Jan 15, 2016

No performance difference between 4 or 5 inch. I started with a 4" flopro straight and would put a muffler on it when I was working in cities and put the straight back in it when I was on jobsites. Good fitment with flopro. Switched to 5" AFE. Also good fitment and definitely deeper tone. I ran both the 4" and the 5" on my built motor setup and didn't notice a significant difference in EBP or EGTs.

OutlawII · Jan 15, 2016

How is the 5 inch with no muffler? I think iwill put a muffler on mine dont want anything too loud,i like quiet when im crusing down the highway!

mattmal9 · Jan 15, 2016

OutlawII said:
How is the 5 inch with no muffler? I think iwill put a muffler on mine dont want anything too loud,i like quiet when im crusing down the highway!

I find mixed answers to this question. Some people say they have no drone, but personally when on the highway around 60-65 my truck has a pretty serious drone. I'm looking into maybe installing a resonator.

Notneb · Jan 15, 2016

I can't hear anything over my tires...

BK39 · Jan 15, 2016

Seems like the guys with 15 and newer trucks don't complain about the drone as much as 11-14 guys. And then what's loud to one person, may not be loud to another. Personally, I didn't like the drone with the 5", the 30" resonator made it too quiet, so right now I'm running a 4" exhaust.

OP, if you were closer, I have a 5" with 30" resonator I could sell you. But shipping it to Bama may be expensive.

sootie · Jan 15, 2016

BK39 said:
Seems like the guys with 15 and newer trucks don't complain about the drone as much as 11-14 guys. And then what's loud to one person, may not be loud to another. Personally, I didn't like the drone with the 5", the 30" resonator made it too quiet, so right now I'm running a 4" exhaust.

OP, if you were closer, I have a 5" with 30" resonator I could sell you. But shipping it to Bama may be expensive.

i wish i could find a 30" resonator in Canada

bhudson · Jan 15, 2016

What part of tx? I really don't know if I want a resonator or not. Guess I'll have to see once I get everything done and how it sounds

BK39 · Jan 15, 2016

Dallas

The 5" with 30" resonator is almost as quiet as factory. That's why I took it off.

Stokt · Jan 15, 2016

OutlawII said:
How is the 5 inch with no muffler? I think iwill put a muffler on mine dont want anything too loud,i like quiet when im crusing down the highway!

I have a 2012 with 5" and no muffler. Doesn't bother me in the cab at all. Took a 12 hour road trip with my wife and two kids and no complaints.

bhudson · Jan 15, 2016

First diesel truck, but have always had at least 2 1/2" duals on all my gassers. Never bothered me much, but hell my hearing ain't what it used to be anyway.

1stock13 · Jan 15, 2016

I have a 5 inch flo pro with their muffler. I'm probably going to pull the muffler off, at high rpms it sounds weird. almost like a gas truck with a bad exhaust leak. Maybe its me but its hard to beat the sound of an older cat inline 6. That's the sound i was more aiming for.