Akrapovic S-PO/TI/9H Evolution Line Titanium Cat-Back Exhaust System

The Akrapovic S-PO/TI/9H Evolution Line exhaust system represents the pinnacle of high-performance exhaust engineering, constructed entirely from high-grade lightweight titanium. This complete cat-back system features parts cast in Akrapovic's in-house foundry, including an active X-connection and an additional pair of exhaust valves positioned behind the rear mufflers for optimal exhaust sound control and aural enjoyment.

Performance and Sound Engineering:

• Delivers up to 10.1 HP increase and 8.8 lb-ft additional torque across a broad RPM range
• Achieves a remarkable 40% weight reduction compared to stock (saving 27.5 lbs)
• Perfectly tuned to produce a sporty, deep higher-frequency V8 sound with unmistakable Akrapovic character
• Engineered to eliminate drone for maximum everyday driving comfort
• Optimized gas flow and reduced back pressure enable limitless tuning potential

Key Features:

• ECE type-approved with plug-and-play installation—no ECU remapping required
• Complete titanium construction including cast titanium components
• Active valve system with dual-mode exhaust control
• Compatible with optional Akrapovic Sound Kit for driver-controlled sound modes
• Quad rear exit configuration (tips sold separately)
• Can be enhanced with optional titanium or carbon fiber tailpipes

Important Installation Notes: For vehicles equipped with the base (non-sport) Porsche exhaust system, the Middle Valve Actuator Kit (P-HF1170) is mandatory when installing this Evolution Line system. This system is not compatible with vehicles equipped with Otto Particulate Filter (OPF) or Executive models. When using the optional Akrapovic Sound Kit, ECE type approval is no longer valid.