Good-Win Racing Mazda Performance Parts

Porterfield R4-1 - For AP Racing BBK

2013-2018

Hybrid Street/Autocross/Track

BRZ/FRS/86 2013-2018 · Brakes


Part Number: 61-2256

Application: 2013-2018

Price: $145.95

Quantity:

Porterfield R4-1 - For AP Racing BBK
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Note: Fits our Essex Designed AP Racing BBK with CP8350 Calipers and Wilwood Superlite 6 Calipers (7420).

This high friction racing material has grown to be a very popular choice for drivers who need the highest possible friction with a low pad temperature. Developed and tested in the vintage racing community the R4-1 gives an average coefficient of friction of .56 with peak levels up to .600. Having tremendous stopping power, the R4-1 pad material can reach upwards of .5 friction level when pad temperature is a very low 200 F .

Drivers can still have a high friction brake pad without worry of the pad becoming too cold to be effective when the car is driven only moderately. For use when pad temperatures are under 600 F and peak temperatures are not over 1000 F. Widely used on Vintage GT and formula cars the R4-1 has gained great popularity as an excellent auto-cross, off-road and rally-cross pad material. Great modulation, consistent pedal feedback and the same rotor friendliness as our other carbon kevlar compounds.

*** Product images may differ from actual product appearance ***

REVIEWS

I should thank you. The parts ordered have greatly enhanced my MX-5 and they were received well before I could have reasonably expected them. I'm an enthusiastic new customer. Regards, John

-- John W.

I wanted to thank you for the excellent customer support,the smooth transaction, and the quick delivery of my Enkei RPF1 16x8 wheels. I would recommend your company to anyone interested in good old fashion great customer service. Thanks again and look forward to doing business with you again in the future.

-- Jack