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#1
03-06-2011, 05:06 PM
Hummer Novice
Join Date: Apr 2009
Posts: 23
Catback
Added a Magna catback last week. Can not believe the difference in gas use. The computer hasn't changed the mpg yet (11.7) but I now can drive it to work and it uses exactly half the amount it was using.
I am just happy as hell!!!
#2
03-06-2011, 05:17 PM
Hummer Veteran
Join Date: Feb 2011
Posts: 115
Re: Catback
Did you get out halfway and started pushing the Hummer 
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