The Akrapovic Racing2 and Evolution2 open systems are designed for riders in road racing closed course competition and for those who attend trackdays and expect the maximum from their exhaust system and know how to take advantage of it. This exhaust systems are within strict FIM and AMA supersport and superstock regulations. The Racing2 and Evolution2 open systems make the Suzuki substantially more responsive, and the HEXAGONAL muffler also provides a great visual modification.

Performance

Measurements of the Akrapovic EVOLUTION2 open system on the SUZUKI GSX-R 750 (without muffler insert):

Power & Torque: the Akrapovic exhaust system increase the responsiveness of the Suzuki and fill out the power and torque curves. The increase in torque starts already at around 3000 rpm, while the power curve increase starts around 5400 rpm and leads all the way to the top of the range. At 13400 rpm we measured a massive 141 HP.