For sale I've got a set of Porterfield R-4 Full Race front brake pads for track use. I picked these up a while back when I had expected to be going to the track fairly often....however, I STILL have yet to go. So, I need to unload these and start saving up for a wideband. These Porterfield R-4 compound brake pads are new in the original box. The part number on the box is AP 555 R-4. The R-4 compound is Porterfield's full race compound, and is suitable for road courses, rally, autocross, club events and professional racing. The carbon based semi-metallic compound warms up quickly, requires minimal bed-in, and remains consistent and predictable. These front brake pads fit 1996-2000 Audi A4 Quattro, 1996-1999 Audi A4, 1998-1999 Audi A4 Avant. Retail price of these pads is about $200. Looking for $125 shipped OBO
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