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4th Gen Ram Tech 2009+ and up Rams: This section is for TECHNICAL discussions only, that involve the 2009 and up Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

Magnaflow with or without y-pipe?

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Old 07-22-2014, 04:28 AM
ramzor ramzor is offline
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Join Date: Jul 2014
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Default Magnaflow with or without y-pipe?


I've bought 24" Magnaflow muffler #12388 and y-pipe #10778.

As I was just about to get it installed, I ran into a post about CFM ratings (made by HammerZ71, I believe) , which placed my muffler at 767CFM, whilst stating that the maximum you should do is 600cfm to avoid damage and performance decrease.

What makes me even more worried is the addition of y-pipe, which would increase the cfm even more...?

Since some of you probably have this combination installed, could anyone share their experiences, and whether it's safe to install both?

I'm a little afraid since I have a 2014 Ram 1500 with only 200 miles...
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Old 07-24-2014, 03:52 PM
02Regcab's Avatar
02Regcab 02Regcab is offline
Join Date: Oct 2008
Vehicle: 2011 Ram CC 5.7L 4x4
Location: Brampton,ON, Canada !
Posts: 229

I would really not be worried about a 24" magnaflow and a ypipe install
causing "damage" to your truck or slowing you down ..
Go for it , you'll be happy you did.

2011 HEMI 4x4 Crew Cab Sport 3.55 VARARAM, True Dual Straightpipe w/Magnaflow X-PIPE, Circle D ProII 258mm 3000rpm Stall, HEMIFEVER TUNING, Moes 87mm TB, Stant 190*F Thermostat
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Old 07-24-2014, 03:52 PM

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