EBC Brakes for the Porsche 911: Which Parts Fit

By Core Brake Parts Tech Team — Circleville, OH warehouse

EBC Brakes pads fit the Porsche 911, but only the cars running cast-iron rotors. If your 911 has the yellow calipers and ceramic discs of the Porsche Ceramic Composite Brake system, EBC is not the answer and you need Porsche's own ceramic-matched pads. On an iron-rotor 911, the whole decision comes down to matching the EBC compound to how you actually drive the car.

Iron or PCCB? Settle this before you shop

Porsche introduced the Ceramic Composite Brake in 2000 as an option on the 996-generation 911 Turbo and as standard equipment on the 911 GT2. The disc is a ceramic fibre-reinforced composite with aluminium particles integrated into it and a prolonged heat treatment, and Porsche puts the weight saving at around 50 per cent versus cast iron, worth approximately 20 kg on the car depending on model.

Telling the two apart takes about ten seconds in a parking lot. Porsche identifies PCCB by its striking yellow brake callipers and large-diameter discs. Standard iron-braked 911s wear anodized black four-piston or red six-piston aluminium calipers, and the white calipers you may have seen on other Porsche models belong to the Porsche Surface Coated Brake system, not PCCB. Look through the spokes as well: a ceramic disc face has a distinctly different cast-in look from a machined grey iron face.

Why it matters: Porsche states that PCCB uses specially developed brake pads designed to work consistently across a wide temperature range, and that PCCB discs wear differently to cast-iron discs. A friction material formulated for grey iron is not formulated for that ceramic surface. Every EBC pad discussed below is an iron-rotor pad, and our own 911 listings say so in the title.

The EBC compounds, and which 911 driver each one suits

EBC publishes friction and temperature figures for each grade, which makes the choice less of a guess than it looks. Here is what EBC's own technical pages state.

Yellowstuff is the street pad. EBC reformulated it during 2021 to remove copper for environmental compliance, and the current mix takes a longer bedding procedure, typically completing naturally over the first 100 to 200 miles of urban driving. EBC no longer suggests Yellowstuff as a track material for most cars, pointing track drivers at Bluestuff or the RP and SR ranges instead. For a 911 that commutes and occasionally gets driven hard on a good road, that is still exactly the right brief.

Bluestuff NDX is the one most 911 owners actually want if the car sees an occasional lapping day. At 0.52 Mu it has serious bite, EBC rates it to rotor temperatures of 550C, it has gained R90 approval on most EU fitments, and EBC calls it the recommended pad for a drive-to, enjoy, drive-home event. EBC also claims 20,000 miles and upwards in street use even when driven hard, with no hissing, squealing or grinding during the bedding period. EBC's own current guide names Bluestuff DP52206NDX for the 992-generation 911.

RP-X is a dedicated motorsport material, and EBC is unusually direct about where it belongs: it describes RP-X as suited to under-servo'd vehicles and names Porsche GT models alongside the R35 GT-R as examples. It gives higher initial bite and braking power with reduced pedal effort. RP-1 is the opposite philosophy, a flatter 0.45 mu response that lets the driver work the pedal harder and trail-brake with more feel. Neither is a commuting pad.

The EBC part we stock for a 911

Across our catalog we list 76 brake parts that fit 911s from 1989 through 2019. The EBC piece in that group is the EBC Racing RP-X front track brake pad set DP82206RPX for the 2013-2015 911 (991) 3.8L GT3, and the listing specifies cast iron rotors, not PCCB. That pairing follows EBC's own logic precisely: a GT-series 911 on iron discs, being lapped, is the exact under-servo'd, high-duty application RP-X was built for.

If your 911 is not a 991 GT3 on iron rotors, EBC may still catalog a pad for it under a part number we do not currently stock. Check EBC's application lookup with your model year, generation and rotor type before buying anything, because 911 pad shapes change by generation and by caliper.

What fits the 911 when EBC does not

Most of our 911 coverage is Brembo OE and Hawk Performance. The Brembo OE kits pair drilled, UV-coated discs with matched pads in one box, which removes the guesswork of mixing brands. Brembo states that the holes in its drilled discs disrupt the layer of water covering the braking surface, allow quick expulsion of gases to maintain a stable friction coefficient, and help dissipate heat, and that the discs use special alloy cast irons that increase resistance to thermal cracks. Brembo also describes its OE-dimension drilled discs as a plug-and-play solution requiring no modifications compared to the OE disc.

• Brembo OE front kit KT00733 with drilled UV-coated rotors and ceramic pads, 1999-2005 911 for a 996 that wants quiet, low-dust street braking.
• Brembo OE rear kit KT00C06 with Prime ceramic pads and drilled UV-coated discs, 2012-2019 911 for the 991 rear axle.
• Hawk DTC-60 front race pads HB667G.622 for the 2002-2005 Carrera 4 Turbo Look and Carrera 4S when the car is a dedicated track 996.

Browse the full ranges in brake pads and brake rotors, then filter to your year. If you are buying pads and discs together, buy them as a pair rather than putting new friction against a worn face.

Fitting, bedding and what to replace at the same time

Rotor condition decides whether a performance pad behaves. EBC is explicit that rotors need to be in almost dead flat condition, and that an off-flat or ribbed and grooved rotor will treble bed-in times. On a 911 that has been through a couple of pad sets, that usually means new discs go on with the new pads.

Replace the pad hardware, shims and clips in the caliper while it is open, and plan on new wear sensor wires if yours have already triggered, since a sensor that has worn through is not reusable. Inspect the flexible brake hoses for cracking and the caliper piston boots for splits at the same time. Brake fluid is the cheapest insurance on a car that gets driven hard: flush it with fresh fluid of the DOT rating printed on your reservoir cap and in the owner's manual, and torque every fastener to the value in the factory service manual rather than by feel.

For bedding Bluestuff on the street, EBC specifies five stops from 70 mph to 20 mph, a cooldown, then five more stops from 80 mph to 20 mph. On track with Bluestuff, EBC notes you may see a 20-25 mm contact band in the centre of the discs after four or five laps as the pad beds across the face. Yellowstuff, as noted, wants that longer 100 to 200 mile street bed-in.

Difficulty: front pads on an iron-braked 911 are a straightforward job for anyone comfortable on jack stands, roughly an hour or two per axle with hand tools. The complication is the rear on later cars. If your 911 has an electric parking brake, the rear caliper pistons have to be retracted with a scan tool that puts the system into service mode, so confirm what your specific model has before you start.

Frequently Asked Questions

Can I put EBC pads on Porsche Ceramic Composite Brakes?

No. Porsche states PCCB uses specially developed pads designed to work consistently across a wide temperature range, and that the ceramic discs wear differently from cast iron. Use the ceramic-matched pad for that system. EBC's 911 pads are catalogued for cast iron rotors.

Yellowstuff or Bluestuff for a 911 that sees a few track days a year?

Bluestuff. EBC rates it to 550C rotor temperature at 0.52 Mu and calls it the track-day pad for a car you drive to the event and home again, while it no longer suggests the current copper-free Yellowstuff as a track material for most cars.

Is RP-X street legal on a 911?

Treat it as a track material. EBC sells RP-X through its racing line for sprint and track day use, with friction averaging 0.55 mu and fade resistance to 850C. It is not marketed as a street compound, and a race pad on a cold road car is the wrong tool.

How long do EBC pads last on a 911?

EBC claims 20,000 miles and upwards for Bluestuff in street use, even when driving hard. Track use shortens that dramatically, and a 911 driven hard on a hot day will go through a set far faster than the street figure.

Do I have to replace rotors when I change pads?

Not automatically, but the discs must be close to dead flat. EBC warns that an off-flat or ribbed and grooved rotor will treble bed-in times, so if the old discs have a lip or visible grooving, replace them with the pads.

Which caliper color means what on a 911?

Porsche uses yellow calipers for the Ceramic Composite Brake, white for the Surface Coated Brake, and anodized black four-piston or red six-piston aluminium calipers on its standard iron brake systems.

Sources

1. Porsche - Porsche Ceramic Composite Brakes explained - PCCB material, 2000 introduction on the 996 911 Turbo and GT2, around 50 per cent weight saving, yellow calipers, specially developed pads, different wear behaviour
2. Porsche USA - Original Porsche Brakes - caliper colors by system: yellow PCCB, white PSCB, anodized black four-piston and red six-piston standard calipers
3. EBC Brakes - Should I choose RP-1 or RP-X pads? - RP-1 at 0.45 mu to 750C, RP-X at 0.55 mu to 850C, RP-X suited to under-servo'd cars including Porsche GT models
4. EBC Brakes - Bluestuff NDX Super-Street and Trackday pads - 0.52 Mu, 0-550C (ambient to 1000F), R90 on most EU fitments, bed-in procedure, 20,000 miles plus, flat rotor requirement
5. EBC Brakes - Yellowstuff Fast Street pads - aramid fibre compound, 400C (750F) green fade threshold, copper removed during 2021, 100-200 mile street bed-in, no longer suggested as a track material
6. Brembo - Xtra drilled disc - drilled holes for water dispersion, gas expulsion and cooling, special alloy cast irons resisting thermal cracks, plug-and-play OE dimensions