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Old 10-25-2016, 10:31 AM   #2
DarkSunrise
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Join Date: Apr 2012
Drives: 22 BRZ (Previously 13 FR-S)
Location: USA
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Quote:
Originally Posted by Pat View Post
I'm considering purchasing the AP Sprint kit. My car is used on the track and I find myself having to rebuild calipers frequently. Dust boots crack and thinks just don't work smoothly.
I realize I am in a situation that requires compromise. I either:
1. Rebuild OEM calipers frequently and deal with overheating brakes
2. Buy some other BBK with dust seals and hope they don't need frequent rebuilding
3. Buy the AP Sprint kit and hope the mag chloride doesn't destroy them
I spoke with the engineer at AP yesterday and he said they don't have any long-term testing with the kit in salty environments. I live in CO and it's mostly dry here during the winter. But several times each winter we'll see enough snow that they spray mag chloride on the roads.
I'm not asking anyone here to theorize how they will hold up. I'm looking for people that have first-hand experience with this kit that has run it year-round in an area where roads get salted in the winter. Can anyone share their experiences with me? I generally keep my cars for a long time and want to ensure I'm not abusing parts.
Have you considered the Stoptech 328x28 BBK? It has dust boots that seem to hold up to track use. Would be my choice for a BBK that will be exposed to salt.

Quote:
Originally Posted by Sleepless View Post
UPDATE:
- XP12s lasted 7 days on NA power with TF brake ducts (double what I got with stock brakes and the pads are the same price
- Dust boots look great
Quote:
Originally Posted by Sleepless View Post
UPDATE:
- Another 6+ track days on the XP12s but now with JRSC power Switched to APR duct kit since TF would not work with JRSC
- Dust boots still look fine after 12 track days
- Rotors look good too.

Brake feel is really nice and clearly the brakes are no where close to being over taxed.

Very pleased, and the cost was great too ($1800 and easy to install)
Quote:
Originally Posted by Sleepless View Post
UPDATE:
- 5+ track days on the XP12s
- Dust boots still look fine after 17 track days
- Rotors look good too.
http://www.ft86club.com/forums/showt...52#post2721252
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