Black November: up to 60% off, with new deals all month.Shop the deals
Tariff drama? Not here. Every order ships with zero surprise fees.
Free Canadian shipping on qualifying orders $399+.
750,000+ parts from 500+ brands. Whatever the build, we have a solution.
0 Cart
0 Cart
Shop byVehicle
Previous | Next
Porterfield Racing Brake Pads — Race Proven Performance
Porterfield AP345
Image of what an axle set is. 2 pads per wheel, 2 wheels equal axle set

Porterfield Part # AP345 R-4

Porterfield AP345 Brake Pads

$307.95 CAD
Earn 614 Dino Dollars, double for Black NovemberHow it works

Before you order

Compound

Customers also viewed

4.8 on Google985 store reviews
Price matchFound it cheaper?
Canadian since 2005Mississauga, Ontario
Questions?Send us a message

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.
  • R4-1 — The Vintage compound. Designed for vehicles that struggle to keep heat in the pads. Best when temps are under 600°F and peak temps stay below 1000°F. Also popular as an autocross pad. 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

Axle Set of 4 Pieces Porterfield AP345 brake pad REAR

Make Vehicle Applications
Ferrari 94-97 456, 92-94 512 TR, 98-02 550 Maranello, 02-06 575 M Maranello
Porsche 91-97 911 C2 w/Turbo Look, 93-94 911 Turbo 3.6, 1994 911 Speedster w/Turbo Look, 94-98 911 C2 RS Type 993, 93-94 911 C2 RS w/Turbo Look, 95-97 911 Carrera, 1998 911 Carrera S & 2S, 86-95 928, 90-91 944 Koni Sport Susp, 92-95 968 Sport, 89-91 944 Turbo FRONT &/OR REAR for FERRARI : 93-94 348 GTB/GTS/Spider, 90-92 348 TB, 89-92 348 TS, 94-99 F355
Porsche 82-88 911, 82-89 911 Turbo, 89-98 911 C4, 1991 911 C2 w/Turbo Look, 91-94 911 C4 w/Turbo Look Pkg, 93-94 911 C2 RS America Type 964, 78-79 930, 89 944 S2, 90-91 944, 92-95 968, 86-88 944 Turbo (When your vehicle has the same front and rear you would need to order 2 qty of this part to change the brakes on the entire vehicle) Stoptech Racing Caliper ST-41 / STR-41 Trophy D345, D608, HB170, R608, FCP451, 1203

Cross-Reference Part Numbers: D345, D608, HB170, R608, FCP451, 1203

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 have a handling fee depending on your location; pickup in Mississauga has no fee.

Shipping policy · Refund policy

Customer reviews

No reviews yet. Bought this part? Tell other drivers how it went.

Sign in to write a review

Free Canadian shipping on qualifying orders $399+

No duties or brokerage fees

Price match guarantee

750,000+ parts from 500+ brands

Search