Akrapovič exhaust system, manufacturer part number E-PO/T/4, for PORSCHE 911 GT3RS / GT3 (991).

Description AKRAPOVIC E-PO/T/4 Header Set Evolution (Titanium) for PORSCHE 911 GT3RS / GT3 (991) The Akrapovic Evolution Header Set (Titanium) converts the Slip-On system into a complete Evolution Line exhaust system engineered to deliver increased performance at higher rpm. Developed with precision manufacturing and components cast in Akrapovic’s in-house titanium foundry, the system reflects advanced engineering and high-grade finishing standards. The newly developed exhaust manifold integrates 100 cpsi sports catalytic converters and side mufflers, designed to increase both power and torque. The Evolution Line utilizes integrated catalytic converters and electronically controlled exhaust valves to provide dynamic acoustic control and optimized performance output. With valves in the open position, the system delivers an aggressive sound profile comparable to the Evolution Race system. When closed, the valves provide a reduced sound level suitable for everyday driving conditions. Significant weight reduction behind the engine and rear axle contributes to improved handling balance and overall vehicle dynamics. Installation Notes: - When installing Akrapovic optional aftermarket link pipes with sports catalytic converters or without catalytic converters (for closed-track use only), ECU remapping is mandatory. - For closed-track exhaust configurations, ECU remapping is recommended to prevent potential check engine light warning signals. Notice: This product does not meet emission compliance requirements for street or highway use. Specifications: - Maximum Power: 351.2 kW at 8400 rpm (+10.0 kW) - Maximum Torque: 437.4 Nm at 6350 rpm (+27.3 Nm) - Weight: 24.8 kg - Weight Reduction: -14.1 kg (-36.2%) Measured with: Porsche 911 GT3 RS (991) 2014