All price estimates are in Canadian...
All info is being doubled check so please double check my info before you make a big purchase/mistake
Unless specified this information is generic and applies to almost every subaru impreza/legacy/forester.
General:
a) (BBK) Big brake kit's on a 165bhp car is overkill but not dangerous ...
b) It is always recommend to go with stainless steel brake lines.. but you can re-use your stock brake lines for most conversions.
c) Running performance brake fluid is an upgrade on its own :-D
d) Running performance pads makes your setup feel like night/day. EBC/Hawk/Etc.. the more advanced the pad the louder/squeakier it gets..
e) You can just do the front upgrade but your brake bias will be off if you go with a over-sized front caliper.
f) You can keep your stock brake booster in almost every swap.
If you have 1-POT front Brakes and/or rear drums
1) Base models have 1-piston fronts / drums in the rear
-Brighton / Brighton SE /, OBS, (I am sure the OBS has drums but not sure about the 1-pots)
Brake lines:
---> You can use the standard subaru style stainless steel brake lines.
---> Regardless of f= 1 pot / r= drums or f=1 pot / r= 1 pot they still use the same lines
Front caliper upgrade:
---> 2 pot caliper + bracket + rotor from the majority of 2-pot subarus (LGT / Outback / SUS / WRX)
---> Same upgrades described in the 4-pot explanations below.
Rear disc conversion:
---> You will need the rear hubs/spindle from any disc equipped subaru as well as caliper/rotor/bracket/ebrake shoes/springs
---> New ebrake cables from a disc equipped subaru
If you have 2-POT front brakes
2) The majority of Subaru's use 2-piston fronts and 1-piston rears:
-LSi, GT, L SE's, Legacy Outback, 02-05 WRX, 2.5RS etc..
---> If you have front 2 pots and rear 1 pots then all the info below is for you.
OEM brake upgrades.
---[] Fronts []-------------------------------------------------------------------------------------------
Calipers
JDM GC STi (FHI) 4-pistons / 06-07 WRX are direct bolt on.
--> you need at least 16x7" +48/+53 offset rim to clear the brakes..
--> +53 offset 98-01' 2.5RS 5/6-spokes are cheap and fit the bill (thanks mike)
--> 06' WRX pads/rotors are needed
--> OR If you want to keep your GT/WRX rims 16x6.5 + 5mm Spacer = 16x7 :smt009
JDM GC STi v.3-6 (FHI)
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--> These calipers came in black and red. and have embossed letters.
--> Not sure exactly how to narrow the model down..
Cost) Average cost of a JDM FHI f/r kit will go from Fronts $350-700 Rears: $250-600 for just the calipers..
If your lucky you can score the rear hubs..
06-07 WRX
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--> These calipers came in red. and have a sticker for the letters.
--> You can use 3mm spacers to fit the GD 03-06 16x6.5 5-spoke OBS
Cost) 06-07' WRX setup will cost more since they are much newer.
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USDM 04+ GD STi Brembo's & JDM 01+ GD STi (internet calls these v7.v8.v9.v10)
USDM 04' STi / JDM 01+ STi Brembo 4-piston up front are direct bolt on to your stock hub!!.
--> If you purchased your Brembos with the front hubs you CAN use them if they are 5x100. Legacy Axle will slide in.
--> You need much bigger rims to clear these brakes... 17x7.5" I believe..
--> 04' STi pads/ 13" rotors are needed.
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Stock 2-Pot vs Brembo 4-pot
Cost) $1000-1500 depending on condition.
--> Usually you can get calipers, hubs, control arms, sway bars for $1200 at a JDM importer.
---[] Rears []--------------------------------------------------------------------------------------------
3 Methods for FHI 2-Pots:
i) JDM STi v.5/6 backing plates or USDM 06-07 WRX backing plates.
---> Perfect for people who want to replace their wheel bearings while they are at it.
ii) Caliper Brackets
---> Perfect for the cheapish/lazy man.. some grinding of the backing plate may be required.
iii) JDM STi v.5/6 Hubs w/ backing plates or USDM 06-07 WRX Hubs w/ backing plates.
---> Perfect for the ultra lazy man who just wants to PLUG-N-Play..
---> BC/BF/BJ & BD/BK/BG only. Multi-link rear BE/BH/BT & BL/BP are different.
Backing Plates
Discussion about the backing plates: viewtopic.php?f=13&t=23943
--> USDM 06-07 backing plate p/n = Right 26704FE080 / Left 26704FE090
--> USDM parts = http://opposedforces.com/parts/impreza/ ... tration_2/
--> JDM STi = backing plate p/n Right 26255AA041 / Revised 6255AA061 ~ Left 26255AA051 / Revised 26255AA071
--> JDM STi parts = http://opposedforces.com/parts/impreza/ ... tration_1/
Adapters/Brackets 2-pot Rears
JDM GC STi v.4-6 (FHI) / 06-07 WRX 2-pistons in the back need either:
--> Kartboy/Godspeed/Etc.. Adapters/Brackets
--> OR
-->5x100 JDM GC Sti v.4/5 rear hubs that had the 2-piston setup from a JDM wrecker.. No adapter just direct bolt on.
----> Legacy stock rear axles will bolt up to JDM STi hub.. even if the car came with LSD.. no difference.. splines are the same.
--> You can source 06' WRX rear calipers they are the same as the GC STi just red and fresher.
----> Same deal with the adapter / hub.. source the hub from a 06' WRX but it will cost more then the JDM version.
<-- Hubs
JDM / USDM 2-pot Kit
--> Kit from SubieGirlies
--> Kit assembled by random member.... he included the 11.3 Vented Rotors
FHI 2-pot adapter brackets
-->No matter which adapter you choose it will look like this.
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- Choices -
Fastwrx.com
Godspeedbrakes.co.uk
Kartboy
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-> http://www.flatironstuning.com/p-1784-k ... ptors.aspx
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USDM 04' STi Brembo 2-piston .
----> These calipers are so big they will not clear the GT Snow Flakes..
-3 ways to mount them.
1) -Brembo 2-pot adapter brackets
Godspeedbrakes.co.uk
----> With these adapter you can reuse your hubs, axles and R160 rear diff
----> If you use the adapter you need to buy special rotors so that the ebrake still works. DBA/Brembo Blanks
----> 1 pair of DBA 4000 Series "Adapter Rotors".
NOTE:
00-04 BE/BH & 05-09 BL/BP owners who want the Brembo 2-pot rears will have to chop/drill/snip off your factory dust/splash shields; they're too small. Also, the rear spindle will have to be clearanced using a dremel or other grinding tool to make room for the caliper bolts.
OR
--> BE/BH / BL/BP / and so on can not use non-multi-link hubs! No go!
2) -04' STi 5x100 Hubs (Expensive Conversion)
--> DOES NOT APPLY TO BE/BH - BL/BP and so on
--> You will need STi hubs, 12.5" STi rotors, pads, axles, R180 rear diff.
--> R180 comes from USDM 04-05' @ 3.90 (USDM 06+ @ 3.54 w/ 1:1.1 so no go)
--> JDM R180 comes from v.4/5 Type-RA @ 4.44 (they do not carry the abs hole for the sensor and the phonic ring for the abs signal-
--> You will need to match your front diff to the rear.....
- R160 hub vs. R180 hub.
- R160 vs R180
3) -04' STi 5x100 Hubs with Custom Axles
--> DOES NOT APPLY TO BE/BH - BL/BP and so on
--> You will need stock STi hubs, 12.5" STi rotors, pads
--> Custom made axles from your differential side merged into a 04' STi hub side.
- R160 hub vs. R180 hub.
Custom axles (this is an example picture)
Brembo Bracket Problems - DO NOT BUY
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These are tagged with a Brembo logo and Brembo part# 90.2229-C. They do not fit R160 hubs and will not clear stock rotors..
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Rotor Upgrade
H6 Upgrade for Gen 1 / 2 (BC/BJ/BF - BD/BK/BG):
--> 2000+ Legacy have these already.
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--> Cardone Remanufactured Bracket P/N = 14-1605
--> Bracket, 11.3" Rotors & 4 pad clips required.
--> H6 Rotor upgrade uses the stock 1-piston caliper but the surface area is much greater but its NOT a vented rotor.
--> Trimming of your backing plates will be required for fitment.
-> https://www.subarugenuineparts.com/prod ... ts_id=1045
-> http://www.flatironstuning.com/p-1827-l ... 5-wrx.aspx
04' LGT Calipers & Rotors:
Front 04 LGT calipers + rotors OR 11.5" WRX rotors
Rear 04 LGT calipers + H6 rotors 11.5" upgrade
-->This will give you a much larger rotor surface including the H6 rear upgrade.
Cost) $180 for fronts and $220 for rears.
05-07 LGT Calipers & Rotors
[NO IMAGE]
-->its a massive 12.3" front rotor and dual piston caliper (need 17" wheels, any offset, because of the height of the caliper),
--> Rear 11.5" VENTED rotor and single piston caliper (same rotor as FHI 2 pots). You need both calipers and rotors for this upgrade, and they bolt straight up. Dubbed the "best bang for the buck track setup" on NASIOC.
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Other:
Custom Nissan 4/2-pots
Front 4-pots
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-Rougeben's BE w/ Nissan brakes.
--> Fronts require an adapter bracket and 05-07 Legacy GT front rotor (312mmx30mm) .
--> Calipers came from
Reference->http://forums.nasioc.com/forums/show....php?t=1089210
Rear 2-pots
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--> Apparently Nissan & Subaru share parts with each other and these 2-pots are identical to the FHI version.
--> You will need these backing plate P/N # 26704FE080 (LH) 26704FE090 (RH)
--> You will also need kartboy style adapters just like the 2-pot FHI above.
--> Generation 3 (00-04) legacies do not need the backing plate listed above.
--> You will need 05-07 Legacy GT/06-07 WRX rear rotor (292mmx25mm)
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--> Calipers are from R32 GTR, R32 GTS-T 300zx and Silvia S15 (300zx calipers are made out of aluminum and the silvia calipers are cast steel)
--> All calipers are made by sumitomo.
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--> There is a 5mm overhang because the tabs are just slightly longer vs. the FHI version.
--> The wrx/lgt rear rotors will work with either caliper, you need a vented rear rotor, as opposed to the non-vented version found on the "H6" upgrade (same diameter though).
--> Some have speculated using Toyota Celica GT4 rear rotors (turbo awd version, hard to find here in the US) to reduce the pad overhang, but finding rotors for those here can be very difficult.
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Reference->http://forums.nasioc.com/forums/show....php?t=1567707
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Aftermarket..
If you can find a brake kit for either GC or GD style you have to abide by the rules of upgrade listed above.
-so many companies to list....
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Brake Lines
-BD/BK/BG can use 93-01 GC Stainless Steel lines.
--Not sure about the other models.. will fill in the blanks later.
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I am sure I am missing something but this is a good start.. someone will correct or add I guarantee..
I am adding more and more info.. correcting any errors I made.. eventually this may be a sticky
-->Thanks Huffer
-->Thanks Rougeben
-->Thanks Airgne
-->Thanks mike-tracy
-->Thanks YamazakiSubaru
-->Thanks jamal
-->Thanks everyone who I missed
-Chuck





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- R160 vs R180
Custom axles (this is an example picture)
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