Bring race technology to your adventures with Old Man Emu's BP-51 Suspension system, featuring revolutionary patent-pending technology developed to deliver unparalleled on and off road performance. For use on coil over models, BP-51 employs high-quality X5K grade steel coils that incorporate application-specific design. Because they are engineered, developed, tested and manufactured entirely in-house by the Old Man Emu team, ARB can guarantee the highest possible quality. All Old Man Emu Suspension systems come with a 3-year warranty. ;