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Porterfield R4-1 DUAL PURPOSE Pad - MX5 Rear for MX5
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Porterfield R4-1 DUAL PURPOSE Pad - MX5 Rear

2006-2015

Street/Autocross/Track

PART NUMBER: 61-03341

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Price: $169.95

Quantity:

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Free shipping offers apply only to destinations within US Lower 48.

Price: $169.95

Quantity:

FREE SHIPPING

Free shipping offers apply only to destinations within US Lower 48.

DESCRIPTION

Set of 4 brake pads, fits all 2006-2014

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.

BRIAN'S APPLICATION NOTES: I first drove these in Vintage racing a Triumph TR4-A....which is the same weight as a Miata. I really liked the bite of these pads and they worked great at tracks like PIR. Finally decided to try them on our 2007 supercharged track and autocross MX5 and again the bite is great and they have low temperature performance that other race pads can't seem to deliver sufficient for use as your ONE choice for BOTH autocross and track and street driving in warmer climates.

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