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. http://www.porterfield-brakes.com/pads.html
Author
EtchyLives VIP Member
Registered: November 2002 Location: Colorado Springs... FINALLY! Posts: 2513
Review Date: Mon September 6, 2004
Would you recommend the product? Yes |
Price you paid?: $100.00
| Rating: 8
Pros:
Great stopping power
Cons:
rotor wear
These are great for the occasional track day. I also used them for about a month on the street and they worked great-very little squealing, and worked at cold temps.
Track day results were very good considering this is rated as more of an auto-cross pad. Even under extreme heat, these worked VERY well on the stock calipers. The one issue I had was they seriously thrashed my stock rotors. FWIW my rotors were already pretty torn up, but the final track day with the Porterfields did them in. Get upgraded rotors with these pads.
glenspen VIP Member
Registered: February 2005 Location: Fog City Posts: 770
Review Date: Thu November 24, 2005
Would you recommend the product? Yes |
Price you paid?: None indicated
| Rating: 9
Pros:
improved bite, great at high temps
Cons:
lots more brakedust
Compared to stock these pads are awesome, they bite harder and at the track they operate at temperatures that had my stock pads slipping.
darkonion Registered User
Registered: April 2006 Location: Fremont/Davis Posts: 4088
Review Date: Sat January 12, 2008
Would you recommend the product? Yes |
Price you paid?: None indicated
| Rating: 9
Pros:
Hands down better bite.
Cons:
Price (expensive but worth it).
Had these paired with Stoptech slotted rotors and stainless steel lines with SuperBlue fluid. They ran great at the track day.
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