Porterfield R4S
10-01-2011, 07:42 PM
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My Ride: 535
Model Year: 2008
Does anyone use Porterfield R4S pads in their cars? Haven't heard much about them in this forum. I know of a few that loves their R4S, but thought it may be a older product compared to the newer compounds put out by ECS, Hawk, etc?
10-01-2011, 09:21 PM
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My Ride: BMW E-60 530I
i had the on my brembo brake kit, r4s are good street performance bads, You should also look into Carbotech Brake pads, they are also pretty good. I personally dont like HPS, no matter what you do, they freaking squeal.