I hope you are thinking about more than just pads and rotors. I would seriously think about a larger caliper too. Wilwood has some good stuff and Perrin has a 4-pot kit that will fit under the stock WRX wheels.

 

The combination of high performance pads in the front and OEM pads in the back can make a very dangerous rear brake bias on the WRX. I'd honestly stick to the same type of pad in the front/rear on as the Impreza seems to touchy with this. You might not notice this until you're in a emergency situation or in a track enviroment.

 

wilwood=good stuff i highly recommend

 

i don't know what kind of brake upgrades these guys are testing but my wilwoods definately far surpass the stock brakes, and i didn't pay anywhere close to $3000

 

They used a upgraded oem brake system in the testing. This meaning pads+fluid upgraded and maybe SS lines.

My experiences mirror the findings of that test. You can think what you want but the upgraded oem brakes in my WRX where as good as the my STi's bling-bling billion-dolla Brembos. The Brembo are a bit easier to modulate but that is due to the pads. I'm sure that the additional mass would have some benefit in extreme track use but that doesn't seem to be the issue here.

 

Big brake are about consistent braking through better thermal dissipation capabilities. A larger brake rotor and caliper also generates more torque. If I were Billy and not too interested in big brakes, I'd go with the Subaru 4-pots with different pads(will require new wheels ) and a pad improvement in the rear. I run the Prodrive big brakes and love them, though I have yet to get them to a track day. If my coil-overs weren't so damn stiff, the car would probably nose a lot more under braking...I should upgrade the rears, but have lost the motivation to do so lately. Need new computer.

Luke - I have a set of OEM calipers and rotors laying around, if you'd like to trade for your Brembos. I'll even toss in stainless lines and the fluid/pads of your choice.

 

If you're actually running in track days the upgrade might be a worth while investment but if I'm not mistaken none of the "regular" Subaru technical forums peeps here participate in track days. Events such as 1/4 mile, Solo-I, Solo-II time trials and the ever famous "I might go one day" really don't justify such an expense. Unless of course you're justifying the purchase with the bling-bling factor which is also fine. Just trying to help you guys spend your money wisley.

 

I have read that the Stop Tech Kit is better than all the other big brake kits, as it showed less heat fade, shorter repeatable stopping distances and better modulation than all the other big ass kits out there. I have also heard plenty of people bitch and moan about the 6 pot wilwoods as they arent what they are cracked up to be.. not knocking ya ryan, just repeating what i read, your brakes look the shit at least and hey who wants to stop anyhow? Nevertheless, my car has had different pads on the front and rear a few times now, and i have never had any problems, however, i may not drive them in ways you did, so i am not able to see any problem? Is it autocross stuff that screws them up? If so, im not always into stuff like that, but fast sweeping stuff, and a little trail braking, and i never have a problem...

 

no i was talking about what zdriver96 was talking about, the $2000-$3000 brake upgrade