Advan RZ-DF2 Alloy Wheel - 19x10.5 ET15 5x114.3 Diamond Cut and Hyper Platinum Black 8AB2-32-280 Ultra Series valves are heat-treated

Ultra Series valves are heat-treated using a proprietary process for extraordinary strength and durability and Chromium Nitride coated using the physical vapor deposition (PVD) process

less weight than the factory piece and maintain the cleanliness of a normal catalytic converter

and all 350Z's

reduce engine move significantly

Advan RZ-DF2 Alloy Wheel - 19x10.5 ET15 5x114.3 Diamond Cut and Hyper Platinum Black 8AB2-32-280 Ultra Series valves are heat-treatedYokohama ADVAN RZ DF2 Alloy Wheel The latest version of ADVAN Racing's first die forged model, the RZ DF. Design and construction: The thin, sharp twin five spoke design highlights the strength advantages that can only be achieved through the forging process. The side of the spoke with the wider spacing is processed seamlessly all the way to the crotch of the spokes with an Advanced Side Cut, while the side of the twin spoke with the narrower spacing,