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Old 09-23-2012, 06:15 PM
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70x7 70x7 is offline
Dodge Ram Forum Senior Member
Join Date: Jun 2012
Location: Albuq, NM
Posts: 112
Gender: Male
Vehicle: 2008 QC HEMI
Trim Level: Big Horn
Color: Silver
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
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Same thing happened with my muffler swap.
I attributed the first couple fillups to the foot pedal cause of the sound, but the mpg calculation has consistently shown about 1- 1.5mpg drop and its not cause of the sound anymore since I have purposely let off on the throttle more.
Was getting about 15.5 before and now it hits 14 or just a tad over...
2008 1500 QC HEMI--
Spectre Intake*Flopro Max Muffler*Superchips Cortex*Bilstien 5100*Pioneer AVH-X7500BT*Magnaflow Ypipe*Viper Alarm*85mm Throttle Body
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