gmc help?

  #1  
Old 03-28-2012, 08:00 PM
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Default gmc help?

I am putting a true dual straight pipes on my truck its a 1993 gmc sierra 1500 5.7L 350. I am putting cherry bombs or also known as glasspacks.I am trying to determine if i should get 18in or 24in glasspacks. Which would you chose?
 
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Old 03-28-2012, 09:26 PM
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Why does no body ever help on this site?
 
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Old 04-18-2012, 09:06 PM
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I found the larger the pipe, the better gas mileage I get. You get less blow back in a larger pipe. Ultimately it is your call though. Good luck.
 
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