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Exhaust 5.7 HEMI Exhaust Discussion

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Old 04-26-2012, 10:51 AM
The CDP The CDP is offline
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Join Date: Jul 2011
Location: Canada
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Vehicle: 2007 Dodge Ram
Trim Level: Special Edition
Color: White
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
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Hi all,

I have a 2007 Quad Cab 4X4 5.7 Hemi RAM and I'm doing some work strictly for fuel economy (well a little bit of sound too).

I ordered the above muffler 6" round 18" case 24" total length.

I'm not sure if this is a Canadian thing but here's how my exhaust looks as it seems different than most stock designs:

From the Manifolds the pipe goes down into 2 catalytic converters.
The pipe after the catalytic converters then joins into a Y Pipe
After the Y Pipe there is a Resonator
Then about 3' of pipe into a Muffler
Then of course the tail pipe over the axle and out the back including the rear resonator.

My wife daily drives this truck and is concerned about the exhaust being too loud and annoying the neighbors.

My plan has been to remove the front resonator and stock muffler, install enough pipe to connect to the new muffler and use the stock tail pipe.

I'm concerned with both in and out of cab sound. I chose the 18" muffler as people have been saying it is "too quiet" which is probably perfect for me.

Does anybody run this setup and have any comments on the sound? Inside Cab? Outside? Drone with or without MDS?
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Old 04-30-2012, 03:31 AM
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Icepilot Icepilot is offline
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Location: Anchorage, Alaska
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Vehicle: 2007 Dodge Power Wagon
Color: Red
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
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MDS included in 1500 only.
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