RacingBrake caliper rebuilding application coverage is getting better and better for Porsche, as we get more inquiries and interests from Porsche community.

https://racingbrake.com/cayman-boxst...4-12-981-2013/

We have piston sizes from 28/30/33/34/36/38/40/42/44 to 46mm, with 30 & 32mm in height, so chances are we have all the size for your calipers but if you can't find your models/calipers just tell us and we will identify them for you.

RB pistons are machined from solid 304SS bar stock, with thin wall cut process to reduce the weight, having 6 vents to help brake release. The surface is of chrome plated to assure the smoothest movement for modulation and brake control, and for leak free service whether the calipers are under cold winter in your garage, or the hot summer on tracks.



RB's unique yet simple design Stainless Steel piston is all you need to replace a variety of OE type pistons:



The advantage of Stainless Steel piston over OE's aluminum:

1. Better thermal stability (less volumetric change as temperature changes)
2. Better strength & rigidity
3. No corrosion
4. Very lower thermal conductivity - Transmit on about 10% of the heat vs. aluminum, so you will not boil your brake fluid nor would need titanium shims or other cumbersome constructions like you see on different OE pistons.
5. One solid piece construction - Unlike OE's 2pc which the top (yellow) part is usually of "phenolic" - different material than aluminum so it can get cracked or separated due to the heat stress.

Regardless what type of OE caliper pistons you have:

Like this shaft/seal inside pistons from 996 Turbo



Or this type from 997 TT



Or this type from 997 GT2/3 (Phenolic top is separated from piston body):



They can be replaced with RB SS piston, seal and dust boot for a clean and less cumbersome set up, and bring your calipers to a new life.



Picture below shows SS pistons, Oil seal (in black), and Dust boots (blue) which is made of Teflon for high temperature track application. If you don't track you will only need standard (black) boots.

 

I recently rebuilt calipers on the GT3 using RacingBrake pistons. Good stuff!

 

how much for a kit? boxster s 2004
race car only, no street

do we need to take off the calipers of the line to replace them?
I'm racing at Sebring at the end of the month and i could only do the rebuild at the track...

 

Here is the link with different options for the Boxster S:
https://racingbrake.com/cayman-boxst...4-12-981-2013/
It is easier to take calipers off if pistons and seals are being replaced.
Dust boots can be replacement without removing calipers from the lines.

 

Ditto, just did my front and rear gt3 as well due to the cracked puck issue with racing brake's stuff. High quality stuff.

 

Caliper Rebuilding Instruction just got updated in our new website here:
https://racingbrake.com/instructions/
Please feel free to add your comment & experience; including your suggestion to make this instruction easier and friendlier for other Porsche DIY owners
Thank you for your support in the past years and we are proud to be your trusted source in making your calipers perform better and last a lot longer than original.
https://racingbrake.com/porsche-4/

 

I rebuilt my calipers after powder coating using RacingBrake parts. Very easy, parts are clearly high quality. I would recommend

 

Thank you all for your supports.
The only thing we like to remind Boxster owners is, in case you are not quite clear as to which kit you should order.
https://racingbrake.com/cayman-boxst...4-12-981-2013/


Same Cayman but the difference is "S" and "Non-S"
S=28mm rotor thickness (Sports model with heavier rotor)
Non S=24mm rotor (Non sports)
If you have S then BP-404 and BP-403 are the correct selection.
If you have Non S then you should order BP-402 & BP-422
We also include the piston size and height which is a more critical info, as you can see the only difference is the piston height to match up the different rotor thickness. But if you only order for boot and seal kit theyare no difference.

The other question you might have is your caliper color is RED but pics are not. Our pictures are more on the shapes than color, more specific is the piston sizes; the only distinctive color is Yellow for pccb, while iron brakes (non pccb) can be Red, Black, or Silver.
The matrix with links is an easy way to order the components you need quickly w/o having to deal with OEM#, Casting#, VIN# etc., or by description, and so far the accuracy rate has been extremely high, however we are still open to suggestion if we can make it easier for you.

 

Your website is wonky.

I clicked on each item on this page:

https://racingbrake.com/cayman-boxst...4-12-981-2013/

For every image upon which I clicked I was met with this:

404 Error - Page not found

Uh oh, looks like the page you are looking for has moved or no longer exists.

Either I have a faulty browser (unlikely), or you've got a problem.

Thanks.

 

Sorry those links to pictures were broken from our recent new website migration, they are now disabled.
Please click the links above the pictures (P/N and piston size and height)

 

Awesome. Thanks!

Is there a kit for the rear?

 

Right column calipers are for the rear.