Thread: 4 in exhaust system
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Old 07-23-2006, 04:46 PM   #14
gungho
Seasoned Camper
 
Join Date: Jan 2005
Location: Mt. Hood
Posts: 90
M.O.C. #2818
4" cat back lower egt and faily consistant 2 mpg icrease without towing and about 1 mpg when towing.
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