Performance Friction Brakes

PERFORMANCE FRICTION Fast Road & Race Brake Pads For Porsche 0738 / E2406 / T5105. Replacement OE part no 99635293903.



This Product Fits:

Porsche 986 Boxster / Boxster S 1997-05 (REAR)
Porsche 987.1 Boxster / Boxster S 2005-08 (REAR)
Porsche 987.2 Boxster / Boxster S 2009-12 (REAR)
Porsche 981 Boxster S / GTS 3.4L 2012-16 (REAR)
Porsche 982 (718) Boxster 2.0L / T 2.5L 2016>> (REAR) incl S

Porsche 987C Cayman / Cayman S 2005-098 (REAR)
Porsche 987C.2 Cayman / Cayman S 2009-12 (REAR)
Porsche 981C Cayman S / GTS 2012-16 (REAR)
Porsche 981C Cayman R 2012>> (REAR) excl ceramic
Porsche 98C (718C) Cayman 2.0L / T 2.5L 2016>> (REAR) incl S

Porsche 996 C2/C4 3.4L / 3.6L 1997-05 (REAR)
Porsche 997 C2 / C4 2005-09 (REAR)

Porsche 955 Cayenne 3.2L / 4.5L 2003-06 (REAR)
Porsche 957 Cayenne 3.6L / 4.8L 2007-10 (REAR)

Please note: These pads have the clip cut out for the brake sensor but there is no hole drilled in the pad to accept the wire. As this is track and racing pad it is not common practice to fit the sensors. If you insist on fitting the sensors, you will have to drill a hole for the wire to slot in.

The absolute best brakes on the market Performance Friction brakes are the standard of excellence in high-performance vehicles, and street vehicles.

Track days and street upgrades for nearly every make and model are manufactured to meet or exceed OE specifications. Whether you?re driving a brand new Porsche or a vintage collectible, we've got the brakes to fit your needs. Design 911 offer a wide range of Performance Friction brake pads for all Porsche models from 1970 ? 2010, also in the program are a range of Two-piece floating street upgrade disc and replacement steel disc for cars with Porsche Ceramic Composite Brakes (PCCB)

Information about Racing Compound Characteristics

Information about Brake Pad Size

Sold as set of 4 pads for one axle.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

0738.

The product you are viewing cross references to these numbers

Titanium Brake Pad Heat Shields.

This Product Fits:

Porsche 986 Boxster 2.5/2.7 97-05 Rear
Porsche 986 Boxster S 3.2 99-05 Rear
Porsche 987 Boxster 2.7 05>> Rear
Porsche 987 Boxster S 3.2 05>> Rear
Porsche 987C Cayman 06>> Rear
Porsche 996 3.4/3.6 97-05 Rear
Porsche 997 C2/C4 05-09 Rear

The problem of brake fluid boiling is simply traced to heat transferring from the rotors and pads directly into the fluid through the caliper pistons. When brake fluid boils, it releases air that is normally part of the molecular structure of the fluid. This air is compressible of course, and the brake pedal goes to the floor instead of moving the caliper pistons. Production cars tend to suffer from this on track days more as they don't usually have the extensive cooling duct and exotic brake materials as true racing cars. True racing only brake calipers generally come with titanium caliper pistons for one reason. Titanium as a material has low thermal conductivity. This means that it is very bad at transferring heat, which is fantastic if you are trying to keep your fluid cool.

The Girodisc solution to help prevent fluid boiling is to use a thin titanium shim placed between the pad back and the pistons, to keep the braking heat from transferring into the pistons and fluid. Here is a comparison of materials and their relative thermal conductivity ratings:

Titanium 6AL-4V 6.7 W/mk
Steel 52 W/mk
Aluminum 130 W/mk

You can see that Titanium will transfer far less heat than steel and especially aluminum. For cars that are going to see hard or multiple track days, these shims are cheap protection from losing the pedal due to boiling at the wrong time and making the day very expensive.

Water jet cut to exact size, no cutting, grinding, or swearing involved.

Price is per axle (four pieces)

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

TS-738-4

The product you are viewing cross references to these numbers