AP Racing by Essex 2-piece S Vane Competition J Hook Disc Pair (Front 408x34mm)- Porsche 992 GT3, GT3 RS Iron & PCCBAP Racing by Essex 2 piece S Vane Competition J Hook front disc pair for 992 GT3 and GT3 RS with iron or PCCB discs. ***Note for PCCB cars must be used with the smaller D62 iron disc pad shape (Ferodo FCP4664 DS3. 12 DS1. 11 DS2500) Massive increase in airflow, cooling capacity, and durability vs. OEM discs or even conventional curved vane discs 16. 06" x 1. 34" (408mm x 34mm), 84 Sinusoidal "wave" vanes, D62 radial depth Designed for: club racing,