Description
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 |
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