Evolution Line (Titanium) Nissan GT-R 2008MFG# ME NI T 1 The Evolution performance exhaust, made of our proprietary titanium, is an even better match for the GT R, complementing its race inspired looks. Substantial work by the R&D team was required to achieve impressive horsepower and torque output increase over stock, with gains being realized at the redline and throughout the entire rpm range. There are substantial reductions in weight achieved through careful design and the use of light