2002-2006 Mini Cooper S (R53)
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open header???

  #1  
Old 04-17-2011, 04:40 PM
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I was thinking of putting an electronic cut out on my 2003 mini cooper s. I don't know if this is going to hurt me or help me. The sound is not that big of a deal to me, but the performance and gas milage is. Do I want the back pressure or do i want the cut out?
 
  #2  
Old 04-17-2011, 07:17 PM
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most modern engines need backpressure no pressure lost performance
 
  #3  
Old 04-17-2011, 07:19 PM
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That is what i thought because of my last car, but my last car wasn't boosted. I thought that a open header would be best so that you can build that boost faster.
 
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