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K&N Focus RS Mk1 57i Gen2 Performance Air Intake System

The world's best air filter - Million mile warranty Improved induction sound As fitted to our own Focus RS MK1 demo car Desig...

From £278.39 (inc VAT)
£231.99 (exc VAT)

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Genuine Ford RS Style Induction Kit for Focus ST250

Focus ST 250 RS style air box. Genuine Ford Focus MK3 RS air box which acts as a direct fit to replace the standard air box in ...

From £149.95 (inc VAT)
£124.96 (exc VAT)

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