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Magnaflow High Cats Installed !Help!

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  #91  
Old 04-04-2008 | 03:23 PM
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Video is posted in a new thread.
 
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  #92  
Old 02-28-2010 | 03:06 PM
Farmer 98 5.4's Avatar
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Hey Ford Truckin' i saw your vedios....sounds great! I was wondering if anyone knows if the magnaflow high flow cats straight piped will improve gas mileage at all and if so how much?
 
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  #93  
Old 02-28-2010 | 03:22 PM
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^ nope
 
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  #94  
Old 02-28-2010 | 03:23 PM
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A good exhaust system compared to a stock system may give 1 or 2 MAX mpg improvement. Straight pipes will not make this improvement greater.
 
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  #95  
Old 02-28-2010 | 05:17 PM
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alright thanks. I have true duals with thrush mufflers and stock cats and i am thinking about going with the magnaflow cats and straight piping it.
 
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