I asked AP Racing about the seals. This is what they've told me:
"This is a road car caliper but we do list High temperature / Hydraulic race seals that will suit.
Seal kit # CP4900-CEJ ( 1 kit per caliper required, no dirt seals involved with this kit)"
I think that if i use this kit, the calipers will require constant cleaning. So I've decided not to use them.
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