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CARGRAPHIC Turbo-Back Valved Sport Exhaust System (SOUND / RACE SOUND+ Version) For Porsche 991 Turbo / Turbo S 3.8L - PERP91TETRKATERFLAP

$4,676.00
SKU:
PERP91TETRKATERFLAP
Weight:
110.00 LBS
Shipping:
Calculated at Checkout

Description

Upgrade your Porsche 991 Turbo or Turbo S with the CARGRAPHIC Turbo-Back Valved Sport Exhaust System, designed to deliver switchable SOUND and RACE SOUND+ modes for an exhilarating driving experience. Featuring pressureless open (PLO) integrated valves, this system allows you to toggle between a refined, sporty tone for cruising and a bold, aggressive RACE SOUND+ with enhanced burbling and backfire during spirited driving. Engineered for performance and precision, it ensures no drone or resonation, even when paired with additional CARGRAPHIC exhaust components.

Fitment:

  • Porsche 991.1 Turbo / Turbo S 3.8L
  • Porsche 991.2 Turbo / Turbo S 3.8L

Important Note:

  • NOT OBD2 compliant – ECU/DME reprogramming required
  • Switchable SOUND / RACE SOUND+ Export Version designed for motorsport or export use

System Components:

  • CARGRAPHIC catalytic converter replacement pipe set
  • CARGRAPHIC integrated exhaust valves (pressureless open)
  • CARGRAPHIC sport rear silencer

Key Features:

  • Switchable dual-mode exhaust:

    • Valves Closed: Quieter, sporty cruising tone
    • Valves Open: Aggressive, louder RACE SOUND+ with sharper, crisper tone, burbles, and backfire
  • Absorptive silencer design for refined sound quality
  • CNC mandrel-bent pipework for consistent diameter and smooth flow
  • Full SS304L lightweight stainless steel construction for durability and weight reduction
  • Dyno-tested high-performance components
  • Olive- and slide-connections for precise installation and alignment
  • Aeroquip fittings to accommodate thermal expansion without cracking
  • Reinforced laser-cut mounting brackets for reliability
  • Reduced backpressure and operating temperature for improved performance
  • Enhanced throttle response and freer revving
  • Integrated exhaust valves (PLO) for optimized acoustics
  • Performance-tuned, model-specific sound while maintaining Porsche character

Performance Benefits:

  • Maximized engine performance and efficiency
  • Sharper, crisper, and volume-enhancing sound
  • No drone, resonation, or vibration at any RPM
  • Improved low and mid-level tone
  • Weight reduction for better handling

Installation Note:

  • Requires CARGRAPHIC Performance Valve Control Unit (optional) for full valve operation

PERFORMANCE – Made in Germany