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Old 05-09-2013, 11:04 PM   #1
vikramaditya1986
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Hey All,

I've been mulling a well-rounded brake upgrade package for my 2011 WRX since well 2011 and seeing as how most aftermarket BBK systems seem to cost the moon and also given that I am not actually going to race my car, I've settled on the OEM red 4-pot front and 2-pot rear caliper setup that was originally sold on the 06-07 WRX. In addition to better heat and wear distribution, I've heard that they really improve braking feel (removes "spungy" pedal feel) and I also see that they add some nice bling . Here is the list of parts I have compiled so far, so please let me know if I've missed anything or if I have any incompatible parts on my list. I'd really like recommendations for good vendors for the all the parts I'm looking for; vendors - please feel free to respond to this post. My time-frame for the purchase is within the next month, and I'm more than happy to setup a sick bundle deal with a single vendor B-)

Here is my living parts list that I will update as required:

UPDATE : All the parts are in! Woohoo!! KNS Brakes fulfilled the entire order at a price matched to anywhere else I could buy the parts, and also guaranteed fitment on my car so that is a big bonus. Installation is now 7 days away ........

1a) Subaru OEM red 4-pot front brake calipers pair, each with 1 cross spring, 2 pad pins and 1 pin clip

1b) Subaru OEM red 2-pot rear brake calipers pair, each with 1 cross spring, 2 guide plates, 2 pad pins and 1 pin clip

2) KNS Conversion Caliper Brackets v2 (to mount rear 2-pots)

3a) Stoptech Powerslot '09+ WRX OEM-replacement slotted front rotors (same as BRZ rotor)

3b) Stoptech Powerslot '10+ LGT OEM-replacement slotted rear rotors (compatible with 2-pots and has the correct 190mm handbrake drum size. Same as BRZ rotor)

4) 1 lt ATE Super Blue DOT4 brake fluid

5a) Stoptech Street Performance front pads that are compatible with the front 4-pots

5b) Stoptech Street Performance rear pads that are compatible with the rear 2-pots

6) Goodridge braided SS brake lines for 08+ STi (rear 2-pot attachment point is easier to accomodate with the STi lines)

7) Grimmspeed Master Cylinder Brace



P.S. I had a question about brake balance with this setup and KNS implied that it is a non-issue and that this is a pretty solid brake setup. A perusal of the forums suggests that the brake bias actually shifts a little more to the rear, making the car a little more fun

Also thanks to fellow members ksgoh88, gsrcrxsi and chino_487 for valuable input to this list
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Last edited by vikramaditya1986; 09-23-2013 at 12:49 AM.
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Old 05-10-2013, 03:16 PM   #2
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I've done this on my 09 WRX, and I got everything minus the calipers themselves from KNS. They are amazing people to work with and while their calipers won't be the cheapest, it's not far off. I bought the calipers from subaruenguineparts for slightly cheaper as I had Subaru Bucks at the time but they were missing the pin clips for the pads.
For the pads go with whatever fits those year calipers you're buying. I went with Hawk HPS and am not impressed honestly. More dust for roughly what feels like the same initial bite. Your parts list is almost exactly what I got. Overall you have the right idea.
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Old 05-10-2013, 07:55 PM   #3
gsrcrxsi
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Quote:
Originally Posted by vikramaditya1986 View Post
Hey All,

I've been mulling a well-rounded brake upgrade package for my 2011 WRX since well 2011 and seeing as how most aftermarket BBK systems seem to cost the moon and also given that I am not actually going to race my car, I've settled on the OEM red 4-pot front and 2-pot rear caliper setup that was originally sold on the 06-07 WRX. In addition to better heat and wear distribution, I've heard that they really improve braking feel (removes "spungy" pedal feel) and I also see that they add some nice bling . Here is the list of parts I have compiled so far, so please let me know if I've missed anything or if I have any incompatible parts on my list. I'd really like recommendations for good vendors for the all the parts I'm looking for; vendors - please feel free to respond to this post. My time-frame for the purchase is within the next month, and I'm more than happy to setup a sick bundle deal with a single vendor B-)

1a) Subaru OEM red 4-pot front brake calipers. Where can I buy these new with all the necessary hardware? (slide pins, silencing clips etc.).

1b) Subaru OEM red 2-pot rear brake calipers. Where can I buy these new with all the necessary hardware? (2 cross springs, 4 slide pins, Guide pins, pad pins, shims, all hardware etc.).

2) KNS Conversion Caliper Brackets v2 (to mount rear 2-pots)

3a) Stoptech 09+ WRX OEM-replacement slotted front rotors

3b) Stoptech 09+ LGT OEM-replacement slotted rear rotors (compatible with 2-pots and has suitable handbrake drum size)

4) ATE Super Blue DOT4 brake fluid

5a) Stoptech Street Performance 09+ WRX front pads (do these work with the front 4-pots?)

5b) Stoptech Street Performance 09+ LGT rear pads (do these work with the rear 2-pots?)

6) Stoptech braided SS brake lines (do these work OK with the rear 2-pots?)

7) Grimmspeed Master Cylinder Brace

Also are there any issues with brake balance with this setup?
6. Order the rear brake lines for an STi. The mounting points are significantly different between the stock calipers and the 2pots. I was able to make the stock lines work, but it was a pain in the ass an I'll eventually replace them with the Sti lines.
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Old 05-11-2013, 09:32 AM   #4
RM_2
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Subscribed for later. This will come in handy.
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Old 05-11-2013, 12:07 PM   #5
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Old 05-11-2013, 02:11 PM   #6
vikramaditya1986
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chino_487 thanks for the link, I'd seen that thread before but it was good to re-read it. I've also come across this thread on ClubWRX on a full FHI 4-pot/2-pot swap:
http://www.clubwrx.net/forums/suspen...-2008-wrx.html

KNS were very prompt in responding to my inquiry with a quote. Now, decisions decisions......

Last edited by vikramaditya1986; 05-17-2013 at 10:46 PM.
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Old 05-27-2013, 09:38 AM   #7
vikramaditya1986
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This seems like a really well-written and well-debated post on upgrading to 4-pot fronts on the 08+ WRX

http://forums.nasioc.com/forums/show...&highlight=pot
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Old 06-09-2013, 01:18 PM   #8
vikramaditya1986
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This is what happens when I have a bunch a nice parts sitting around before I can put them on the car

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Old 06-11-2013, 11:46 PM   #9
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nice. why not just put them on.
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Old 06-12-2013, 05:34 PM   #10
faSTI666
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I just did this same swap. Added sti mc. Honestly not much difference in brake feel but definately bites and stops better. KNS was awesome, I got everything from them execpt the calipers. I got mine from flatirons tuning in colorado. They had the best prices. Good guys over there who know thier stuff.
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Old 09-22-2013, 09:47 AM   #11
vikramaditya1986
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A long-overdue picture!

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Old 09-22-2013, 10:58 PM   #12
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Agreed that these look good and even though the front brakes are pretty much the same, the feel of the fixed caliper is much better than the sliders.

Quote:
Originally Posted by vikramaditya1986 View Post
3b) Stoptech Powerslot 09+ LGT OEM-replacement slotted rear rotors (compatible with 2-pots and has suitable handbrake drum size. Same as BRZ rotor)
Just wanted to point out, since you seem to be keeping this list updated as a good reference, that the rear rotor should be a 10+ LGT(or 3.6R) rear rotor the 09 LGT was the earlier generation that rotor won't do.
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Old 09-23-2013, 12:35 AM   #13
vikramaditya1986
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Yea the brake feel is substantially better now - not rock hard but better for sure. And the Stoptech street pads have great initial bite but they dust like crazy (and it really shows on my goldies :P).

Got it, I will update the LGT generation to '10+.
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Old 09-23-2013, 01:16 PM   #14
Scoobiesdoobies
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Well you may have framed in windows.....but we still got better brakes! Lol.

Rock on bro! The hawkeye brakes look bling up under there.
Good job.
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Old 09-23-2013, 09:01 PM   #15
vikramaditya1986
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I know right - why didn't Subaru keep the 4/2 pots on the GR WRX?? I didn't even know the hawkeyes had them until I started looking for BBKs for my car and I stumbled across Subaru's finest (which of course isn't any bigger than stock GR brakes). I would have definitely optioned them on my car if they were offered as an SPT upgrade for like $1k or something like that, but I guess Subaru is too concerned about differentiating the STI from the WRX (though that didn't stop them from including the 4/2 pots as standard WRX equipment before). Well you know what - it gave me an excuse to mod my car! Thanks for the compliments! And IMHO frameless may be troublesome but it looks cool B-)

Last edited by vikramaditya1986; 09-23-2013 at 09:09 PM.
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Old 09-25-2013, 04:34 AM   #16
Scoobiesdoobies
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Yea if i was going to get a new car it would be a brand new sti limited hatch in white.
I like the new wrx but downgrading a few components vs the 06-07 to save on production cost.....come on. When you change something that was metal to plastic... You are taking 10 steps in the wrong direction.
The only upsides are the slight hp gains, slightly comfier inside (probably alot less rattling, vibrating and overall cab noise) and the framed in windows lol.
Pretty much everything you look for in a new car generally.
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Old 09-25-2013, 11:28 PM   #17
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In Subaru's defense, Americans have shown time and again they want competitive price over all. Look at the Legacy GT they couldn't move them off the lots after 06. The 4/2 pots are gone it seems Subaru phased those out, but the american WRX is and has almost always been missing a few pieces of equipment vs the rest of the world markets. That's just the way it is we have a very price competitive market.

I love me some fixed calipers though!
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Old 09-26-2013, 12:04 AM   #18
Scoobiesdoobies
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Quote:
Originally Posted by Power6 View Post
In Subaru's defense, Americans have shown time and again they want competitive price over all. Look at the Legacy GT they couldn't move them off the lots after 06. The 4/2 pots are gone it seems Subaru phased those out, but the american WRX is and has almost always been missing a few pieces of equipment vs the rest of the world markets. That's just the way it is we have a very price competitive market.

I love me some fixed calipers though!
Il take a jdm or edm triptonic 4eat plz. Damn usdm simplistic bull****
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Old 10-07-2013, 11:11 PM   #19
vikramaditya1986
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@Scoobiedoobies: Believe me if I could have forked out ~ $38 grand for an STi Limited I would have - all the goodies in the drivetrain, brakes and engine are easily worth the money. But unless you were doing a full-on trackday or driving at speed on loose surfaces, you'd have to be driving like an absolute maniac to outrun a WRX with modded suspension and some sporty brake pads and fluid. The badge prestige is nice, but there are other places I'd rather spend my spare $8 grand

@Power6: That's too bad for the rest of us who actually want nice hardware on models other than the STi. As I said, I would have opted for the 4/2 pots as an SPT upgrade if only they bothered to offer it. The only SPT performance mod of any kind available for the GR WRX is the catback which is supposedly inferior to yet more expensive than aftermarket parts from Invidia, Perrin etc. partly due to the 2.5" piping instead of 3.0" . And catbacks alone don't even get you any more power on a WRX :P

Last edited by vikramaditya1986; 10-07-2013 at 11:20 PM.
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Old 10-08-2013, 12:15 AM   #20
Scoobiesdoobies
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Yea 26g's after trade in and moderate interest is what my 06 limited rex cost.
The 4eat shifts very quick. i have no mods other than dspecs and 3" muffler delete, blew a 2012 wrx hatch away...before and after 4th gear lol.
But buttwarmers, leather and a moon roof are worth it. Adding a little bit of luxury to an ugly subaru world lol.
My extra 8 grand went to a badass mountain bike.
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Old 10-09-2013, 02:00 PM   #21
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Quote:
Originally Posted by vikramaditya1986 View Post

That's too bad for the rest of us who actually want nice hardware on models other than the STi. As I said, I would have opted for the 4/2 pots as an SPT upgrade if only they bothered to offer it. The only SPT performance mod of any kind available for the GR WRX is the .catback which is supposedly inferior to yet more expensive than aftermarket parts from Invidia, Perrin etc. partly due to the 2.5" piping instead of 3.0" . And catbacks alone don't even get you any more power on a WRX :P

Yea it really is too bad. They didnt bother to offer it because they didnt bother to make it. They stuck with intake, exhaust, heat shields and keychains....
The spt is only "inferior" because it is aimed at increasing sound mainly while keeping the exact copy of stock back pressure numbers.
Most 3" exhausts arent needed until you get to 350hp and beyond.
Spt is factory made, the 4/2 pots are made by a vendor.
The brakes are a whole other story, and a whole other manufactuer....but agreed, weird they didnt keep the upgraded brakes for an upgraded chassis!!!!!

:Confused:
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Old 10-15-2013, 02:07 AM   #22
04Silverex
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Please post more pics
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Old 11-01-2013, 11:55 PM   #23
Millsie
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Do these clear the stock +11 WRX wheels? I understand the brembos need a 3mm spacer, but I can only assume these are marginally smaller so will not require the space.
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Old 11-02-2013, 09:04 PM   #24
DisrupTer911
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thanks for the part list! Helps a ton!!

Fronts dont need brackets? Direct fitment?

I have a '13 WRX any differences?

Last edited by DisrupTer911; 11-02-2013 at 09:14 PM.
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Old 11-03-2013, 03:33 AM   #25
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Quote:
Originally Posted by DisrupTer911 View Post
thanks for the part list! Helps a ton!!

Fronts dont need brackets? Direct fitment?

I have a '13 WRX any differences?
There's likely no difference since there's no reason for Subaru to change the front hubs from the previous years.

Since your car is relatively new, it may be difficult to cross reference OEM replacement parts for front calipers. I'm sure if you select your car in one of the handful of online auto parts store website and search for front calipers, and cross reference it with the OEM replacement caliper for a 2008 WRX, it'll probably be the same part number.
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