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Porterfield Racing Brake Pads — Race Proven Performance
Porterfield AP917
Image of what an axle set is. 2 pads per wheel, 2 wheels equal axle set

Porterfield Part # AP917 R-4

Porterfield AP917 Brake Pads

$431.95 CAD
Earn 431 Dino Dollars on this order. How it works

Before you order

Compound

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Canadian since 2005 Questions? Email sales@raptorracing.com

Porterfield Brakes are race-bred friction designed and proven on the track. Each set is precision-cut from premium friction material and developed for high-temperature durability, fade resistance, and consistent pedal feel.

Available Compound Options for this Fitment:

  • R-4 — The original road racing compound that is very rotor friendly and easy to modulate. Medium friction with a 0–1200°F temperature range; optimum 350°F–900°F. Not for street use.
  • R4-E — The Endurance compound. Slightly lower friction than the R-4 but designed to wear longer for endurance races (4–6 hour). Characteristics are otherwise much the same as R-4. Not for street use.
  • R4-S — The performance street pad. Lowest dust and squeal of any street pad in the Porterfield line, very rotor friendly, and lasts as long as (or slightly longer than) stock pads. Not for track use. Not for use with CCM discs.

Vehicle Fitment

Porterfield AP917 brake pad Axle Set of 4 Pieces FRONT

Make Vehicle Applications
Porsche 99-05 911 Carrera, 99-04 911 Carrera 4, 00-04 Boxster S, 06-07 Cayman S REAR for PORSCHE: 01-05 911 Turbo, 2005 9111 Carrera S, 02-05 911 Carrera 4S, 03-05 911 Carrera w/Turbo look Pkg, 04-05 911 GT3, 99-04 911 Carrera 4 w/Turbo look pkg **NOTE: Race versions do not have counterweights*** D917, AP917, R776, PFC 0776, Pagid 2405, HB550.634, FRP3051

All Porterfield Brakes products carry the manufacturer's standard warranty. Race compounds are not for street use.

Free Canadian shipping on qualifying orders $399+, with no duties or brokerage. Special order and made-to-order items can't be cancelled or refunded once ordered. Oversized items may carry a handling fee depending on your location; pickup in Mississauga has no fee.

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