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Old 10-03-2010, 07:14 PM   #4
clinebarger
Senior Member
 
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
Re: Best chip or module for a of 05 duramax

The best way to increase MPG on a common rail diesel is to advance the injection timing.

Most modules on the market are "pressure boxes" all they do is trick the PCM into raising rail pressure, This does make horsepower but is hard on injectors.

Ive heard good things about EFIlive http://www.efilive.com/

Last edited by clinebarger; 10-03-2010 at 09:41 PM.
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