OptiTorque XR6 Barra Turbo 12mm Head Studs W/Over sized Washer
- Optitorque Technologies are a USA based specialist fastener manufacturer.
- Optitorque Barra head Torque Master studs are rated at an amazing 240,000-260,000psi ultimate tensile strength.
- Optitorque studs will handle more boost than other head stud kits on the market (excluding ARP Custom Age 625+). These studs offer an economical stud upgrade to ARP2000 without the high expense of CA625+.
- Optitorques Nissan RB 1/2″ version has been tested to 90psi boost successfully.
Don’t be fooled by cheap studs, just because they have a nut on top does not guarantee better performance.
- Head studs.
- 12 point nuts
- Over sized washers