Ross Performance Parts Nissan RB25 R33 Metal Jacket Harmonic Damper with Integrated 36-2 Tooth Crank Trigger Disc:

High-performance OEM replacement Metal Jacket Harmonic Damper
Rated for 800hp
Integrated 30-2 Tooth Trigger
Maintains OEM alternator/water pump and air-conditioner pulley diameters, locations and profiles
Suitable for high-performance street applications and occasional track use
Ross Performance Parts Nissan RB25 R33 Metal Jacket Harmonic Damper with Integrated 36-2 Tooth Crank Trigger Disc:

High-performance OEM replacement Metal Jacket Harmonic Damper
Rated for 800hp
Integrated 30-2 Tooth Trigger
Maintains OEM alternator/water pump and air-conditioner pulley diameters, locations and profiles
Suitable for high-performance street applications and occasional track use