You didn't read my post or his. 04-11 STi/STI Front Calipers fit. 04-07 (at least) STi/STI rear calipers fit.

However, fitting doesn't mean working correctly due to the caliper design and mounting location, UNLESS the STi/STI calipers have a second spot for a bleeder on the opposite end of the caliper. The reasoning for that is that the calipers are differential-bored so they are directional. If you keep the left on the left but move it from the rearward side of the rotor (like the STI is) to the frontward side of the rotor (like the BRZ) the pistons will be correct but the bleeder will be on the bottom, which isn't good. If you swap sides, the bleeder is fine, but the piston bores are backwards, which also isn't good.

So literally the *ONLY* 2004 STI dependant part are the rotors. Nothing else.

A much cheaper upgrade will hopefully be newer LGT front rotors and caliper brackets (and maybe calipers if the BRZ calipers have smaller pistons and/or don't fit on the LGT brackets).

And that's assuming a brake upgrade will be needed. It absolutely WILL NOT be needed for the street, and even on track cars will only be needed if the OEM brakes can't keep up with the repeated high speed stops, assuming the car has enough power to even experience repeated high speed stops without cooldown (assuming track pads and good fluid).

If you are doing it for looks none of this would probably concern anyone though.

Price difference for the same model and size wheels just because of the bolt pattern btw? Example? I've never seen that.

Relax man. I think people get too worked up over posts. I know its not possible since I have spent money on modding before. Stupid number to throw out there I admit. That being said I will not pay more for a stripped version. I'd rather sell the parts I strip off to get the stripped version result. Now a stripped down version for cheaper would be cool though I doubt it will happen that way. Less seem to cost more if you follow Porsche formula.

You are NOT swapping the hubs. There is no need to. The STI caliper bolts onto the KNUCKLE. The 04-07 STI *CALIPERS* are exactly the same (and 04-12 all work) and bolt directly onto the WRX Knuckle, and the BRZ knuckle.

You need new rotors for any year STI calipers as they are spaced off the knuckle to accept the larger 12.8" STI rotors. If you skip that part you won't have much brakes at all.

This has already been done on a BRZ without changing knuckles/hubs by Greddy, just using 2004 STI rotors.

I've seen two stories for the rear.. first is:
The rear STI calipers from an 04-07 also bolt right onto the BRZ, but you won't have a parking brake (due to the drum parking brake used on the STI vs the BRZ using the sliding caliper).

Second is:
You need 08+ STI calipers and redrilled 08+ STI rotors.

Greddy already did both ends of the car, without changing the knuckles or using any special adapters/parts.

Oh and here: http://www.motoiq.com/magazine_artic...cion-fr-s.aspx

Personally the expense of the parts outweigh the need/benefit for me, especially considering the potential caliper issues (differential-bored piston/bleeder issue). The newer LGT fronts are almost as large (12.4"x30) but can use a simple sliding caliper. Yeah, not good for looks, but they work fine.

Even the stock brakes are made for cars weighing in at 3200-3400lbs or so, they will be awesome in this car on track IMO.

Then your original description is completely inaccurate. Half the crap you want on your stripped out street car would be pulled off and ebay'd on day 1 of a race car build.



Who in this thread said anything about building a low budget street car? Not Max Schnell, and certainly not me (hint: BIWs don't have VINs). I, at least, was talking about actual race cars, not street cars or tuned track day/autocross cars. And if you were building a race car, and it absolutely had to be an AS1, you would save a considerable amount of time, effort and money by buying a BIW.

Why would you even want to use any of that crap on a race car? (OEM engine mounts included)

Dave-ROR is 100% correct. I'm not sure what the other poster is on about.

Subaru have for a long time sold bare bones race cars. They are for real race teams, not people who want to build street cars. As pointed out, they don't have RIN plates and cannot be registered. Generally they only suit those who are building to GroupN specs as even those cars are full of stuff that a dedicated track car would throw in the bin.

Thought I'd check back on this forum to see if the level of discussion had improved. It hasn't.

You just need to improve the level of your ignore list. :lol:

You keep reading about it, I'll keep doing it.

I could post a number of threads explaining how you can use parts that aren't from an 04 STI too.

Fact is, we are NOT swapping the hubs so the bolt pattern and hubs don't play a role here at all.

if we are talking about brake hardware for late model STIs some modification may be needed in the fronts for the BRZ because the spindles/knuckles are different, its not just the hubs that's are different between 04STI and 05+STI

Yes for the older rears on a WRX you do, or run the 08+ with redrilled rotors from what I've read. What none of us know is exactly what's needed to make it work on the BRZ, except for the only group who has done it, and has said it was a simple swap of calipers and rotors. :shrug: (of course I fully expect no parking brake on that swap done on the BRZ by GReddy)

BTW, this is from the very thread you linked regarding the fronts:
Which is what I said, except that that post was old (2008) so not updated to 04-12 calipers for the front.

Did you read the link I sent? That was about a car (a BRZ) where the swap has already been done.

I have been assuming that you were talking about the fronts also, not just the rears. Was I mistaken?