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PerformanceTrucks.net Forums (https://www.performancetrucks.net/forums/)
-   GM Engine & Exhaust Performance (https://www.performancetrucks.net/forums/gm-engine-exhaust-performance-21/)
-   -   Help chose muffler for setup (https://www.performancetrucks.net/forums/gm-engine-exhaust-performance-21/help-chose-muffler-setup-531073/)

Matt331 07-28-2014 07:10 PM
Help chose muffler for setup
 
2010 sierra 5.3 , putting on Doug thorley headers and no cats . Need to quiet it down with a muffler .
Thx

Chevy_King1500 07-28-2014 07:16 PM
I like my magnaflow

gamble686 07-28-2014 07:23 PM
22" big body magnaflow

Matt331 07-28-2014 07:27 PM
Originally Posted by gamble686 (Post 5232878)
22" big body magnaflow
Do you guys use round or oval? Thx

Matt331 07-28-2014 07:28 PM
Originally Posted by Chevy_King1500 (Post 5232875)
I like my magnaflow
Do you have a part number thx

FFDP 07-28-2014 07:38 PM
I run a magnaflow 12219 muffler. Great sound when on the gas and zero drone on the freeway. Just a 3in/3out with a 14in body and 20in overall length.

Matt331 07-28-2014 08:21 PM
I found a 22" length body 12589.
Is this a good 3" muffler fory application ? Thx

low2001gmc 07-29-2014 03:48 PM
Originally Posted by Matt331 (Post 5232889)
I found a 22" length body 12589.
Is this a good 3" muffler fory application ? Thx
especially with no cats, the 22 is the one you want. your truck should have offset and center inlets/outlets. verify and if so, best to get the magnaflow 22 with same inlet/outlet that way it is just cut and weld as a perfect replacement.
good luck, Rob:popcorn:

Jason Z69 07-29-2014 08:00 PM
Magnaflow 22 dual in dual out with built in x. I have it on mu true dual set up with a x befor the mag. Sounds bad a$$

Turbo09 07-29-2014 08:25 PM
Yep magnaflow 22" here too oval body 3" in/ out. It sounds great and quiet when you are trying not to be noticed.


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