Brian Crower rods for EJ engine are made from 4340 billet steel. All Brian Crower rods are designed for high horsepower forced induction and high-revving naturally aspirated engines where longevity is key. Manufactured in state-of-the-art CNC machining centers, Brian Crower rods are a high-precision choice for your Scion tC. These are full sets of four (4) rods including aluminum bronze bushings. BC offers their rods with ARP2000 fasteners (rated to 200 HP per cylinder) or ARP625+ fasteners (rated to 300HP per cylinder).