For high performance and heavy duty street conditions the Porterfield R4-S compound remains
a top performer in the realm of street/performance brake pads. With the R4-S compound
giving a friction level up to .41. This is an amazingly fast stopping brake pad. Simply put, they will
give you an impressive increase in stopping ability with very minimum amount of pedal effort.
Perfect for prolonged everyday street driving while also being capable of enduring the most severe
use without fade. It is also rotor friendly of course.
We have gone to great measures to ensure that the R4-S compound has the absolute lowest
noise and dust levels possible, far below O.E.M. equipment or any other high performance
brake material. The R4-S compound which has an overall win in the Baja 1000 is available for
most models of cars, trucks, and SUV's. Superb stopping power under heavy use. Great for
occasional autocrossing, solo events, off road events and rallies. Perhaps one of the overall best
performing, clean and quiet everyday high performance driving brake pad ever made.
Set of 4 Pieces
Rear for JAGUAR: 06-10 S Type, 06-11 S Type R/XJ R
Rear for JAGUAR: 2013-15 XF 3.0L SUPERCHARGED
Rear for JAGUAR: 09-10 XF/XFR 4.2L, 10-12 XF/XFR 5.0L (exc. Supercharged), 2013-15 XF 2.0L TURBO, 09 XF Supercharged
Rear for JAGUAR: 06-09 XJ 8, 10-12 XJ,XJL, 06-09 XJR
Rear for JAGUAR: 07-09 XK 8, 06-09 XK R, 08-09 XK R exc. Portfolio, 10-14 XK
NOT FOR USE WITH CERAMIC ROTORS
