The PVT disc uses, in its ventilation chamber, pillars instead of vanes. Disc cooling capacity is enhanced by an extra 40% and therefore provides more resistance against thermal cracking. PORSCHE 992615301, 992615302, 99635140902, 99635140903, 99635140904, 99635140905, 99635141002, 99635141003, 99635141004, 99635141005, 9P1615301A, 9P1615302A.
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