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Old 10-22-2008, 12:40 AM   #1
mostasz
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Default 07 WRX brakes on 04 WRX - good upgrade?

Is it good upgrade? I am looking for sharper brakes on daily driver compare to stock. Also, is it direct replacement? Or I need any modifications?
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Old 10-22-2008, 09:04 AM   #2
UkNuck
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Have a read of jamal's Notes on Brake Interchangeability from the Brake Supersticky at the top of the forum.

Don't really know what you mean by 'sharper' but I would expect pad compound would be where you should focus - you can gain a certain amount by removing some of the front bias (which the Subaru 4/2 setup does) but there are more cost-effective ways of achieving that (e.g. the H6 rear rotor upgrade).
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Old 10-22-2008, 06:01 PM   #3
mostasz
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Found my answer:
Quote:
"Any FRONT caliper/bracket will bolt up to the front of any other modern Subaru (except the SVX), but in the rear there are different backing plates."
Thank You UkNuck
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Old 10-22-2008, 07:21 PM   #4
MasterKwan
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I thought the 07's reverted to the same crappy brakes all the older ones had?
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Old 10-22-2008, 09:14 PM   #5
rwdCivic
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Quote:
Originally Posted by MasterKwan View Post
I thought the 07's reverted to the same crappy brakes all the older ones had?
Nope my 07 has the 4/2 pots just like the 06's.
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Old 10-22-2008, 09:32 PM   #6
MasterKwan
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Nice.
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Old 10-23-2008, 12:35 AM   #7
wopdeeze
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rear backing plates are pretty easy to change out my car is 8 years old and just took a little elbow grease to get the hub off. read my post about nissan calipers on the rear, just substitute your subaru calipers instead of nissan calipers.
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Old 10-23-2008, 02:11 AM   #8
freshADR
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Subaru 4pots are definitely an affordable upgrade (if bought used). Honestly, they are about equivalent to Brembo's except for the heat dissipation aspect. These are the same brakes on the GC STi's
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Old 10-23-2008, 09:35 PM   #9
supersuby2
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Also i don't see it mentioned on here much but you can remove the brake bias valve that sends 60% brake to the front and 40% to the rear to make it 50/50 and all you need are a couple brakline couplers from an autoparts store for 3 bucks each. It helps alot and is really cheap and easy. Then put some hot pads on and you will be set real nice
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Old 10-23-2008, 10:12 PM   #10
MasterKwan
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Yeah, I wouldn't do that. You'll just make the rear lock pre-maturely. The reason the rears get less pressure is, under heavy breaking they only do about 30% of the work because all the weight shifts over the front wheels. With ABS, it's probably not dangerous but, without ABS, you're asking to spin under heavy breaking.
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