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Old 03-15-2013, 06:58 PM
hemipowerv8 hemipowerv8 is offline
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Join Date: Dec 2012
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Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
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Most tuners include the speedo recalibration if you ever plan to do that...
The difference is about the same as the tires...35s over 33s is about 6% difference and that's about the same as the speedo errors above.
Thanks for doing that though! Very nice info.

This same 6% gain, makes your MPG about 13.7 mpg instead of the indicated 12.9 in the photos. Not bad for big 35" mud tires and a HEMI! Wonder how much the Magnaflow and S&B help that out...ordering both for my truck (14" and Y from Mf and the oiled filter CAI setup from S&B) asap!
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Mods: Tint, Line-X spray in, PD emblems, Weathertech mats, Honeycomb grille, Mopar tow hooks, Magnaflow 18" and Y, Bilstein 5100s @ 2.1" & TGC rear spacer .75", Toyo All terrains 35x12.50x20, 5" black tips, BakFlip tonneau cover, 87mm tb
Next: Gorilla lifetime lug nuts, CAI, Diablo tune.

Last edited by hemipowerv8; 03-15-2013 at 08:20 PM.
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