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Old Sep 12, 2006 | 03:36 PM
  #4  
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AustenW
Advanced PassionFord User
 
Joined: Oct 2003
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From: Nth Lincolnshire
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For good spool up and response go with 1.5" pipe which is good for upto 500bhp

For for more than that go with 1.75 to 2" pipe

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