Poterfield R4-S:
R4-S High Performance Street & Autocross
For high performance and heavy duty street conditions
the Porterfield R4-S compound has become a consistent
top performer in the realm of high performance/street brake
pads. Car clubs world wide are finding out benefits of the
Porterfield R4-S Carbon Kevlar compound.
Perfect for prolonged everyday street use while also being
capable of tolerating the most severe use without any
fade. Rotor friendly of course.
The R4-S friction level average of .400 simply put, will
give you an impressive increase in stopping ability with a
very minimum amount of pedal effort. We have also gone to great measures to ensure that the R4-S
compound have the absolute lowest noise and dust levels, far below O.E.M. equipment or any other
high performance brake material. This is an amazingly fast stopping brake pad. Great for autocrossing,
drivers schools, solo events, and rallys.
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 The R4-S compound
which has an overall win in the Baja 1000 is also available for most models of trucks and SUV’s.
A proven performance street brake pad.