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Porterfield R4-1 Carbon Kevlar Racing Brake Pad AP 681 R4-1

Our Products: Brakes > Brake Pads > Porterfield Brake Pads
Price: $211.95
SKU: AP 681 R4-1
Brand: Porterfield
Porterfield R4-1 Carbon Kevlar Racing Brake Pad AP 681 R4-1
Porterfield R4-1 Carbon Kevlar Racing Brake Pad AP 681 R4-1

MakeModelSubModelNoteYear
BMW530iE39, Front Brake Pads.2001-2003
BMW540iE39, Front Brake Pads.1996-2003
BMW740iE38, Front Brake Pads.1995-2001
BMW740iLE38, Front Brake Pads.1995-2001
BMWM5E39, Front Brake Pads.2000-2003
BMWX53.0i; 4.4i; Front Brake Pads.2002-2006
BMWX5Front Brake Pads.2000-2001
LAND ROVERRANGE ROVERHSEFront Brake Pads.2003-2005

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Porterfield Carbon Kevlar R4-1 Racing Brake Pad:  AP 681 R4-1 

Porterfield R4-1 Carbon Kevlar Racing Brake Pads were developed and tested in the Vintage Racing community. Because of the high coefficient of friction (?) at low temperatures, these are fast becoming the Autocross brake pad of choice. A peak ? of .600 the R4-1 pad can reach close to ? of .500 at temperatures as low as 200?F. The R4-1 brake pads are widely used on Vintage GT and Formula car where pad temps are under 600?F and peak temps are below 1,000?F. This is also a good Rally-Cross brake pad.

Typical AP 681 R4-1 applications are BMW E38 740i and 740iL. E39 530i, 540i and M5. BMW X5..

Made in the USA



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