Ford Focus MK3 ST Diesel Boost Hose KitThe SD Hoses Silicone Boost hoses (part no. SD) has been designed to replace the standard restrictive OEM hoses on the Focus ST Diesel. The hose is constructed to provide a constant radius reducing restriction throughout the whole piping. The hose is made from high quality 6 layer mutli ply silicone. It is available in Black, Red, White or Blue to compliment the signature colours of the Focus ST range.
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