AKRAPOVIC E-PO/T/4 Evolution Header System (Titanium) for PORSCHE 911 GT3RS / GT3 (991)

AKRAPOVIC E-PO/T/4 Evolution Header System (Titanium) for PORSCHE 911 GT3RS / GT3 (991)

The Evolution header system (titanium) transforms the Slip-On system into a full Evolution Line exhaust system, engineered to boost high-RPM performance. Designed for the Porsche 911 GT3 RS (991), this solution provides a power increase and torque optimization across the entire rev range.

The system is crafted from high-quality titanium with a protective coating and features components cast in Akrapovic's in-house titanium foundry. The new exhaust manifold integrates 100 cpsi sports catalytic converters and side mufflers, optimizing exhaust gas flow and enhancing engine efficiency.

The Evolution Line utilizes integrated catalytic converters and an exhaust valve control system to balance performance and acoustic characteristics. In the open-valve mode, an aggressive sound profile is generated, comparable to the Evolution Race. In the closed position, noise levels are reduced for moderate operation.

A reduction in weight in the area behind the engine and rear axle improves weight distribution and positively impacts the vehicle's handling.

Installation Notes:

Note: This product does not meet emissions requirements for on-road use.

Technical 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%)

Measurements performed on vehicle: Porsche 911 GT3 RS (991) 2014