Removing Just the Muffler

Inferno Red 4x4 · 07-04-2008, 09:13 AM

New to the forum and really enjoy reading the posts.
I would like to keep my truck stock (for now), but wondered if I would create any codes or issues by removing only the muffler? I don't want a loud truck, but just a little more tone.

Thanks!

2008 Quad Cab 2500 4x4, 6 spd, Inferno Red, Stock (for now). Replaced 1997 5.9.

Last edited by Inferno Red 4x4 : 07-04-2008 at 09:32 AM. Reason: Omitted truck details.

**Captain Call** · 07-04-2008, 09:17 AM

Please fill out your signature so everyone can see what you have. You'll find plenty of knowledgeable folks on here.........Welcome to the forum

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**K2DieselPerformance** · 07-04-2008, 09:32 AM

Quote:

Originally Posted by Inferno Red 4x4

New to the forum and really enjoy reading the posts.
I would like to keep my truck stock (for now), but wondered if I would create any codes or issues by removing only the muffler? I don't want a loud truck, but just a little more tone.

Thanks!

You won't notice a sound difference when you remove the muffler on a 6.7. The stock muffler is already a straight through design.

It will not throw any codes or cause any issues if you do remove it

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***slagburn*** · 07-04-2008, 09:32 AM

If your referring to removing the muffler on a 6.7 then there isn't much to be had, they are basically straight through and only seem to reduce the cabin drone by a hair. All of the other stuff in front of the muffler does a good job of muffling things down.

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07.5, 6.7, Auto, QC, 4x4, Lots of gauges - ISSPRO (Pyro, Boost, Trans Temp) PriCol Optix (Fuel Pressure Lift/Rail) AutoMeter (Oil Pressure) - Dynatrac Free-Spin Hub Conversion Kit - RETRAX bed cover - homebrew shaved bluetec badge - plugged up EGR - Baldwin BF1212 water separator and CAT 1R0750 fuel filter - MSD Dashhawk - Baldwin B164 Bypass Filter

G-NOTE · 07-04-2008, 12:12 PM

It does drop egt's by about 100-150 degrees just put a 5" turn down bolted up to the dpf and you will notice a little drone from idle to 1500 but no sound difference, but I did notice the drop in egt's...

I guess less distance for the exhaust to travel freed up some heat...

But it does seem hotter under/around the truck when regen...

Do It ! It definatly looks better than that stock pipe sticking out of the side...

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*2007.5 QC 4x4 Cummins,6.7, 6-spd Auto,AFE megacannon, No Muffler 6" Turndown bolted to DPF, 3" Suspension Lift, 24" KMC MONSTERS,37" Pirelli Scorpion ATR, Completely MURDERED!!!

07-04-2008, 09:13 AM	#1 (permalink)
Inferno Red 4x4 Newbie Join Date: Jun 2008 Location: Ohio Posts: 1 Inferno Red 4x4's Truck Pics	Removing Just the Muffler New to the forum and really enjoy reading the posts. I would like to keep my truck stock (for now), but wondered if I would create any codes or issues by removing only the muffler? I don't want a loud truck, but just a little more tone. Thanks! 2008 Quad Cab 2500 4x4, 6 spd, Inferno Red, Stock (for now). Replaced 1997 5.9. Last edited by Inferno Red 4x4 : 07-04-2008 at 09:32 AM. Reason: Omitted truck details.

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07-04-2008, 09:17 AM	#2 (permalink)
Captain Call VP OF UTAH OPERATIONS Join Date: Jun 2008 Location: Out west Posts: 226 Captain Call's Truck Pics	Please fill out your signature so everyone can see what you have. You'll find plenty of knowledgeable folks on here.........Welcome to the forum __________________ BELLS AND WHISTLES HERE

07-04-2008, 09:32 AM	#4 (permalink)
*slagburn* $.02 Contributor Join Date: Oct 2007 Location: Los Angeles / OC Posts: 1,640 slagburn's Truck Pics	If your referring to removing the muffler on a 6.7 then there isn't much to be had, they are basically straight through and only seem to reduce the cabin drone by a hair. All of the other stuff in front of the muffler does a good job of muffling things down. __________________ 07.5, 6.7, Auto, QC, 4x4, Lots of gauges - ISSPRO (Pyro, Boost, Trans Temp) PriCol Optix (Fuel Pressure Lift/Rail) AutoMeter (Oil Pressure) - Dynatrac Free-Spin Hub Conversion Kit - RETRAX bed cover - homebrew shaved bluetec badge - plugged up EGR - Baldwin BF1212 water separator and CAT 1R0750 fuel filter - MSD Dashhawk - Baldwin B164 Bypass Filter

07-04-2008, 12:12 PM	#5 (permalink)
G-NOTE Cummins Fanatic Join Date: Nov 2007 Location: Houston Posts: 105 G-NOTE's Truck Pics	It does drop egt's by about 100-150 degrees just put a 5" turn down bolted up to the dpf and you will notice a little drone from idle to 1500 but no sound difference, but I did notice the drop in egt's... I guess less distance for the exhaust to travel freed up some heat... But it does seem hotter under/around the truck when regen... Do It ! It definatly looks better than that stock pipe sticking out of the side... __________________ *2007.5 QC 4x4 Cummins,6.7, 6-spd Auto,AFE megacannon, No Muffler 6" Turndown bolted to DPF, 3" Suspension Lift, 24" KMC MONSTERS,37" Pirelli Scorpion ATR, Completely MURDERED!!!