Named after the rpm point at which an engines horsepower equals its torque, the fiftytwo52 was engineered with one priority: performance.Beginning with the 1 ¾“ matched ratio head pipes, exhaust pulses are synchronized to allow for optimized scavenging of exhaust pressure.Flowing into the powercurve, true-merge collector, the exhaust will maintain velocity and experience the smoothest transition possible.Moving into the muffler, a 2 ½“ free flowing, perforated core baffle provides the least interference as the exhaust escapes.And it doesn’t all end with performance.The 20 degree upswept muffler with moto gp inspired end treatment attains a unique and aggressive style, while the dual layer baffle packing produces an incredibly deep race tune.Integrated heat shields and firebrand’s hand crafted quality complete the package.