I put an STR one on at 65k miles and mine was leaking already. Know that I know about it, I'd probably replace as I was doing the swap. They really aren't expensive or hard to change.
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Andy - Reinstated
Hybrid Forum Moderator
'06 Subaru Legacy Spec B - Stock, for now
'98 Civic EX - CTR headlights and grill, Kosei K1's, for sale
'90 240SX - SR20DET that will never get installed, project car.