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Old 04-16-2011, 10:25 AM
Ramathorne Ramathorne is offline
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Join Date: Jul 2010
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Truck doesn't like the muffler?
I never heard that before
Every truck likes an upgraded muffler
Despite what the EVIC was telling you your mileage should go up if you can control your right foot

Last edited by Ramathorne; 04-16-2011 at 10:29 AM.
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Old 04-19-2011, 03:52 PM
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eltoro2 eltoro2 is offline
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Originally Posted by stever View Post
I just had a magna flow muffler installed on my ram 09 hemi ,but I have a problem according to my evic system my fuel economy just went in the gutter,it is about 3 to 4 miles to the (bad) on highway and city driving .I talked to my dodge dealer and they seem to think that the MDS system does not like the change and it is staying in the 8 cylinder mode..?
tell your dealer he's full of s mufler has nothing to do with it . quite a few of the mds 5.7s have this trouble , trouble is in the damn mdf sys . not working right . but you cant tell the damn dealer that they know everything . same thing happened when they came out with the 4 8 cad,s a few years back . mdf systems suck then and now .
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Old 04-19-2011, 06:13 PM
theweavman theweavman is offline
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Join Date: Oct 2010
Location: Las Vegas, NV
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Vehicle: 2009 Dodge Ram 4X4
Trim Level: Laramie Crew Cab
Color: Austin Tan Pearl &Lt. Graystone Pearl
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
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I added a CAI and throttle body spacer, and I have lost about 3-4 MPG across the board.....not sure why either? Truck runs strong and everything else is fine.....
So it is written ! So it shall be done!
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