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header primary size & crossover size

Discussion in 'Turbo Tech Questions' started by ToxicPelican, Aug 9, 2004.

  1. ToxicPelican

    Joined:
    Apr 9, 2004
    header primary size & crossover size

    At what HP level would everyone reccomend changing from 1 5/8 header primaries to 1 3/4? also the same for changing froma 2.5" crossover to a 3" crossover.

    (basically at what point will those smaller pipes start to hold back the HP level?)
     
  2. RAGE RACING

    Joined:
    Feb 20, 2004
    header primary size & crossover size

    WE MAKE 1200+HP TO THE WHEELS USING 1 3/4 HEADERS AND A 2 1/2 CROSS OVER.
     
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