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CADET FORMULA WTP
Please note that the `Cadet Formula WTP` regulations as published in the 2006 MSA Kart Race Yearbook, and previously notified to be deferred, will now come into effect from the 1st March 2006 including the mandatory addition of a 15.5mm inlet restrictor for the WTP B5 engine. Only the official restrictor as supplied by John Mills Engineering Ltd can be used. A homologation fiche for the WTP B5 engine will be available for purchase from the MSA Sales Department.