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PORTERFIELD R4S lasted 82k miles

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Old 11-29-2006, 02:15 PM
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S550, R350, GL550, ML63 AMG
PORTERFIELD R4S lasted 82k miles
Just wanted to get a quick poll on how long those with R4S pads lasted. Also do you have alot of rotor wear.

I installed my C32 Brake upgrade at 38k miles and just replaced them this weekend at 120k miles. The sensor was exposed a little and the rotors were barely worn, no lip.

I highly recommend these brake pads, very good on the rotors, low dust and long lasting. Increased stopping over OEM pads as well.
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Old 11-29-2006, 05:23 PM
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Great pads; and last alot longer than others.
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Old 11-29-2006, 05:30 PM
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Nice! Thanks for the info. Are they pricier than the OEM pads? Where can I buy them from?
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Old 11-29-2006, 07:43 PM
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My only problem with these is that mine squeel badly so I switch back to the stock ones after track days.
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Old 11-29-2006, 08:17 PM
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you need to prep the rotors and pads properly so you don't get squeeling. My forst set never did and so far my second set hasn't either.
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Old 11-29-2006, 09:15 PM
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Originally Posted by drallafi
Nice! Thanks for the info. Are they pricier than the OEM pads? Where can I buy them from?
ForMyMercedes.com

Just follow the instructions, using the installation kit provided, and they are squeak/squeal free.
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