21st May 2014, 08:50 PM
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Senior Member
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Join Date: Jan 2012
Location: Scarborough, North Yorkshire
Posts: 217
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As far as I know, they are just metal valves rather than the standard rubber. They look a little better and are a higher performance product (not that a standard valve fails for normal road use).
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Deep Green 2006 '56' A8 4.2 SE, B&O & Exclusive Interior Extended Aluminium, Oak Sepia Wooden Trim, Extended Leather Green Exclusive Dual Colour, Heated Comfort Leather Interior Green Alcantara Headlining, Pillars, Rear Shelf, Door Inserts Green Trimmed Mats, Seatbelts, Steering Wheel, Centre Armrests DAB, Freeview, ACC, 4-Zone Climate, Soft Close, Electric Blinds
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