HID Fog Lights on a B7 Audi A4 and S4 – Nick's Car Blog
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Amazon.com: munirater 2-Pack Clear Lens Fog Light Left and Right Side Replacement for 2009-2012 Audi A4 S4 B8 Sedan with H11 12V 55W Bulbs : Automotive
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Superb LED Bulbs COB Fog Lights Source Angel Eye Bumper Cover Fit For Audi A4 B8
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2Pcs H1 LED Headlight Bulb Kit 100W 8000K Ice Blue High Low Beam Fog Driving Lamp - Walmart.com