Thread: Standard vs H.O/Ram-Air Exhaust Manifold
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Old 07-18-2004, 01:22 PM
Peje Peje is offline
Chief Ponti-yacker
  
Join Date: May 2004
Location: Stockholm,Sweden
Posts: 602
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Hi! If I change from the Std YS 400 ex manif
to the cast iron hi-perf factory manif,any notible difference?Or do I have to uppgrade with another cam,carbjet,ignition.Another word:Is the stock exh manifold just **** in any way?

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