Just looking at the pictures and where it came from, I'm guessing they're there to reduce drag by deflecting air from hitting the tires directly.

It'll be interesting to know if you'll hear some air noises when travelling in high speeds...

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TQ2K


'04 N62 - Alpine White/Truffle
'03 S62 - Petrol Mica/Champagne
'97 S52/4/5 - Alpine White/Dove
'91 M42/4/5 - Brilliantrot/Tan