Thread: Oversized exhaust system
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Old 02-24-2012, 07:57 AM   #11
DonandJudy_12
Montana Master
 
Join Date: Feb 2005
Location: Sioux Falls
Posts: 729
M.O.C. #3206
We have an 05 GMC 3500 D/A- We added a 4 inch exhaust system, an airbox by AFE and a Diablo control unit- The result is one strong truck- Mileage increase is minimal but the increase in performance has been well worth the expense- JMHO- Don
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