Brembo brakes upgrade for my 02 - Subaru WRX Forum
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post #1 of 32 Old 08-09-2016, 01:37 AM Thread Starter
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Brembo brakes upgrade for my 02

Getting the parts next week or two weeks from now ..please confirm if I got this right.. thanks!

Brembo calipers STI 04-05
Rotors 04-05
Kartboy brackets for rear calipers
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post #2 of 32 Old 08-09-2016, 05:38 AM
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just 04. 05's are different. 04 is 5x100, 05 is 5x114.

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post #3 of 32 Old 08-09-2016, 09:44 AM
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Calipers are the same 04-17. Rotors are different. You need 04 STi rotors as titter said.

You also have to deal with some other stuff if I remember correctly, the emergency brake? It's been a while since I had that 04 WRX...

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post #4 of 32 Old 08-09-2016, 11:32 AM Thread Starter
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thanks for the correction .. yeah my problem is the rear brakes can't seem to find a clear procedure how to do the conversion
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post #5 of 32 Old 08-09-2016, 04:48 PM
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Im about to do the process myself whats to be noted about the e brake? Im doing a whole drive terrain swap right now its pretty intense but feels beastly just got the old 5 speed out now moving to remove the rear diff, hubs everything and else attached to go into 5x114 with brembos as well, i want to make sure that i dont miss little stuff like that haha

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Originally Posted by mikea1 View Post
thanks for the correction .. yeah my problem is the rear brakes can't seem to find a clear procedure how to do the conversion
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post #6 of 32 Old 08-10-2016, 12:02 AM Thread Starter
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2nd that what's the issue about the e brakes??
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post #7 of 32 Old 08-10-2016, 06:57 AM
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if your getting the katboy bracket the procedure is very simple.

1) bolt on bracket
2) bolt on caliper
3) enjoy

with this kit all you will need is the calipers
http://www.fastwrx.com/products/rear...-kit-02-05-wrx

make sure u get the Brembo adapter and not the FHI adapter (for the 4/2pots). they are different adapters.

copied from fastwrx.com
Some installation details: You'll have to chop/drill/snip off or bend your factory dust/splash shields; they're too small for the new much larger rotors. Also, if you have a Legacy, the rear spindle will have to be clearanced using a Dremel or other grinding tool to make room for the caliper bolts.

Kit includes two rear brake rotors, two caliper mounting brackets, and hardware. Fits all 2002-05 WRX, 2005-2009 Legacy GT, and 2002-2008 Forester XT.

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post #8 of 32 Old 08-10-2016, 11:18 AM Thread Starter
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thanks again bro!

I decided to hold back with my brembo project for 3 more weeks ..i'll do a rear diffuser install this Monday then Fmic project next next Monday after that i'll do my brembo swap My hybrid engine i'll probably mount it by oct. my boss still wont approve my vacation leave
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post #9 of 32 Old 08-10-2016, 11:56 AM
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Oh also while your swapping brakes anyway you might as well invest in some quality brake fluid. Makes a huge difference as far as heat fade and pedal feel. ATE and Motul make some great fluids just be sure your swapping them regularly as racing fluids absorb water faster.

- Jason
Slow is Smooth > Smooth is Fast
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post #10 of 32 Old 08-11-2016, 06:03 AM
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if you havent bought your brembos yet, you should instead go for FHI 4/2 Pots. you'll save yourself some of money.

without diving into a massive physics and math lesson, i will say that they give you virtually the same amount of braking force as the brembos on a stock setup. most of the braking force a person feels if from pedal feel. most people think that the initial bite of the brakes is all the force they get, when infact this is false. if the two cars weight the same, have the same brake fluid, same brake pads, and most important, same tires, then the 100-0kph(60-0mph) test will be virtually identical. a good set of pads, stainless steel lines, and good fliud, is all you need to improve your brakes.


to decrease your stopping distance (which is a completely different scenario) you need better tires

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post #11 of 32 Old 08-11-2016, 06:11 AM
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for FHI 4/2 pots you need this bracket (yes it looks the same but its actually different)
https://www.rallysportdirect.com/par...fhi-2-pot-rear

you will need 2006/2007 WRX Rear Rotors for these instead of 2004 STI Rotors that u need for the brembos.

the front rotors are the exact same and can be re-used.

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Last edited by titter; 08-11-2016 at 07:30 AM.
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post #12 of 32 Old 08-11-2016, 07:46 AM
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Also wheel clearance is much less of a pain in the ass with the FHI 4/2 pots. And the front rotors cost a fraction as much.

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post #13 of 32 Old 08-12-2016, 05:41 AM
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oh ya wheel clearance. you'll be able to fit 15" rims over FHI 4/2 pots. great for rally, drag racing, winter tires...etc. brembos will limit your choices due to their size.

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post #14 of 32 Old 08-12-2016, 09:31 AM Thread Starter
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thanks for all of the inputs brothers ..yeah at first I was thinking of upgrading to FHI 4-2 pot calipers but now my mind is really fixated with brembo
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post #15 of 32 Old 08-12-2016, 10:07 AM
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then go for it! show those bad boys off with style

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