The Porsche 997.2 Turbo with PDK TRANS Turbo direct bolt-in 1400HP+ Level 5  rear axles. These axles are a direct bolt-in, featuring 108mm inner and outer CVs’ with our exclusive aerospace grade internal cage and race set. With a bolt-on outer stub to fit the factory wheel hub. The center bars are our high-grade aircraft quality torsional center bars that twist more than a factory unit. This helps in absorbing a great deal of the shock factor. They are made with 30 splines, upgraded from the factory 28 spline size. Rated to 1400HP+. The price listed is for both rear axles.