Question about 03 brakes

[Bu11dogg2]

What needs to be done to put 05 sti 2 pot rear brakes on a 03 bugeye?

I know they don't bolt up...

[Murphy2012]

You just need the adaptor plates. You can get them through Kartboy, ebay, and I think through Brembo, too. Brembo does make WRX specific rear calipers, they are the ones I have on my car. Jeremy (AWDPilot) got them for his 06 wagon and them traded them to me.

[Seraphinwolf]

Or a better option. Swap hubs. cost more but int he long run would save headaches.
-Gaddis

[Nate8409]

This is not the case with your car or the caliper. The calipers on the rear of your car both stock and now brembo have the same mounting hole distance. Difference between stock 2 pot rear and brembo rear is just the diameter of the backing plate. The hole spacing is the same which is why you don't have adapter brackets on yours.

You just need the adaptor plates. You can get them through Kartboy, ebay, and I think through Brembo, too. Brembo does make WRX specific rear calipers, they are the ones I have on my car. Jeremy (AWDPilot) got them for his 06 wagon and them traded them to me.


If you have someone who is going to do it for say their own car and has enough tools you can get away with swapping nothing but the backing plates and leaving the used bearing in place. Not a big deal depending on the miles on the bearing although I have heard of the rear bearings going 100k with autocrosses, track days, etc without failure.

You'll have to ask your local parts department how much the backing plates are because that is the only part you "REALLY" need.

Although the kartboy brackets are the easiest way to do it. So in conclusion you need either the backing plates swapped or the adapters from kartboy along with special rotors to retain use of the parking brake. In either case you need to break the spot welds on the dust shield part of the backing plate and get rid of it because you can't retain that feature of the OE plates no matter which way you do it. (very easy to do with a screwdriver and a little force)

On an important note... it is a waste of time because you really don't gain anything from doing it. You would be far better getting a set of super aggressive pads for the rear and semi aggressive for the front unless the purpose of the car is serious track use.

[Bu11dogg2]

Thanks guys, passed this info on :)