Shop by Department
Manufacturers ->Porterfield Brakes -> R4-S

R4-S High Performance Street and Autocross – For high performance and heavy-duty street conditions.  Perfect for prolonged everyday street use while also being capable of tolerating the most severe street use without any fade.   Rotor friendly of course.  The R4-S friction level will give you an impressive increase in stopping ability with very minimum pedal effort.  R4-S compound has the absolute lowest noise and dust levels, far below OEM equipment or any other high performance brake material.  Good for autocrossing, some drivers schools, solo events, and rally’s.  The R4-S compound is available for virtually any vehicle sold in the US.  We also offer the R4-S in pad sizes for competition type calipers that are used under street driven conditions.



AP1000

R4-S

Click Here for Compound Information

Set of 4 Pieces
FRONT for PONTIAC: 04 Grand Prix (and GT/GTP)

AP1003

R4-S

Click Here for Compound Information

Set of 4 Pieces
FRONT for VOLVO: 03-14 XC90 w/336mm Front Discs

AP1004

R4-S

Click Here for Compound Information

Set of 4 Pieces
REAR for SUBARU: 05-06 9-2X AWD, 04-05 Forester 2.5XS, 04-08 Forester 2.5XT Turbo, 06-08 Forester 2.5X L.L. Bean Edition, 03-05 Impreza Coupe RS, 06-07 Impreza Coupe 2.5i, 03-05 Impreza Coupe RS, 06-07 Impreza Sedan 2.5i, 03-07 Impreza Outback/Wagon/5 Door, 03-05 WRX

AP1005

R4-S

Click Here for Compound Information

Set of 4 Pieces
FRONT for LEXUS: 06-09 RX 330/RX 350/RX 400H Hybrid // TOYOTA: 06-07 Highlander Hybrid

AP1007

R4-S

Click Here for Compound Information

Set of 4 Pieces
FRONT for PORSCHE: 04-10 Cayenne w/330mm front rotors // VOLKSWAGEN: 04-05 Touareg with 330mm front discs, 06-07 Touareg V8 4.2L with 330mm front discs

AP1008

R4-S

Click Here for Compound Information

Set of 4 Pieces
REAR for MAZDA: 04-11 RX 8

AP1009

R4-S

Click Here for Compound Information

Set of 4 Pieces
FRONT for MAZDA: 04-11 RX8

AP101

R4-S

Click Here for Compound Information

Set of 4 Pieces
FRONT for MAZDA: 72-78 RX 3 // TOYOTA: 80-83 Corolla Sedan

AP1011

R4-S

Click Here for Compound Information

Set of 4 Pieces
FRONT for FORD: 05-08 F150 2WD/4WD, 04 F150 2WD New Model 6/7 Lug // LINCOLN: 06-08 Mark LT

AP1012

R4-S

Click Here for Compound Information

Set of 4 Pieces
REAR for FORD: 04 F150 2WD/4WD New Model 6/7 Lug, 05-12 F150 2WD/4WD // LINCOLN: 06-08 Mark LT
Shop by Manufacturer

Partners