Akrapovič Porsche Cayman GT4 RS/Boxster Spyder RS (718) Evolution Header Set The Evolution Header Set (Titanium), developed in conjunction with the Slip-On Race Line (Titanium) system, represents cutting-edge engineering for optimal performance on the Porsche 718 Cayman GT4 RS. Using race-proven solutions, this high-grade titanium header set incorporates a special manifold runner crossover on each side, enhancing mid-range performance. With several components cast in Akrapovič’s in-house foundry, including three-in-one collectors for smooth gas flow, the system is 5 kg (51.9%) lighter than the stock version. When installed with the Slip-On Race Line and Link Pipe Set (Titanium), the system delivers an impressive 26 kW (35.4 hp) power increase at 4,900 rpm and a 50.9 Nm torque boost, providing a distinct racing sound full of character, especially noticeable during gear shifts. Remapping of the ECU is mandatory with this installation to ensure optimal performance and prevent issues such as engine warning lights. This product has been specifically designed for use on closed-course competition circuits only and is compatible with both OPF and NON-OPF vehicles. This product does not meet emission compliance requirements for street or highway use. Fitting Note This will fit with the Akrapovič Slip-On system and link pipe set. This will NOT fit the OEM exhaust. Exhaust Data Unit Stock Akrapovič Max gain Max. power kW 372.4 / 8350 rpm 522 / 8350 rpm 26 / 4900 rpm HP (m) 506.3 / 8350 rpm 709.7 / 8350 rpm 35.4 / 4900 rpm HP (i) 499.4 / 8350 rpm 700 / 8350 rpm 34.9 / 4900 rpm Max. torque Nm 471.5 / 6300 rpm 481.7 / 5450 rpm 50.9 / 4900 rpm lb-ft 347.8 / 6300 rpm 355.3 / 5450 rpm 37.5 / 4900 rpm Weight kg 9.67 4.7 – 5 lb 21.3 10.4 – 10.9 % – 51.4 Volume dB 96.5 / 3750 rpm 111 / 3750 rpm 14.5 Inst. time min 120 Additional Information Technical Data Sheet Technical information for this product, download here. Brand Akrapovic
