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  #1  
Old 10-20-2009, 02:43 PM
huntin03z71's Avatar
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Default Cats

i wanna put two high flow cats on my truck but idk the size of pipes on the truck....what size inlet cats should i buy? thanks
 
  #2  
Old 10-20-2009, 03:48 PM
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Why do you want to instal cats when you do not have any on it as it sits now? Fail an inspection? Trying to gain some backpressure back? Or are you do you have a check engine light on?
 
  #3  
Old 10-20-2009, 06:51 PM
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Try 3"
 
  #4  
Old 10-20-2009, 11:46 PM
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2.25" is stock size a believe.
 
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