The Akrapovic RACING and EVOLUTION systems fit perfectly with the Supersport performance and styling of the Kawasaki ZX 6 R/RR. The systems are the same for both the ZX-6R and RR, and differ only in their materials selection. For the EVOLUTION we use titanium, for the RACING stainless steel. We use the Hydroforming process to shape the header tubes for both systems, by which we ensure the optimal tube shape for the exhaust gas flow. These systems are designed for people who expect the maximum from their exhaust systems and know how to squeeze every bit of advantage out of them.

Performance

Measurements of the Akrapovic EVOLUTION system on the KAWASAKI ZX 6R 636 (without noise damper):

Power & Torque: Despite the fact that Akrapovic Racing and Evolution systems are known for their performance at high rpms, both versions of the ZX-6 get a major boost already in the middle of the range around 5000 rpm. The power and torque increase is nearly constant from there on and extend to the very top of the range. At lower revs the Akrapovic curve more or less follows the stock power curve, while the torque curve shows a major increase below 3800 rpm.