Description
Disclaimer : Cancellations within 24 hours are subject to a cancellation fee. After 24 hours, a higher fee will apply.
Transform the sound, performance, and driving experience of your 2012-2018 Audi A8 or S8 with the GCA Performance Valved Sport Exhaust System. Specifically engineered for the D4 and D4.5 chassis equipped with the legendary 4.0L Twin-Turbocharged V8 engine, this premium exhaust system delivers enhanced exhaust flow, improved throttle response, and an aggressive exhaust note on demand.
Designed as a complete cat-back solution, the system replaces the restrictive factory exhaust with larger-flowing components engineered to reduce back pressure and maximize exhaust efficiency. The result is improved horsepower potential, increased torque, and a more engaging driving experience throughout the RPM range.
Manufactured from either premium T304 stainless steel or ultra-lightweight 6AL-4V Grade 5 titanium, this exhaust system offers exceptional durability, corrosion resistance, and long-term performance. Precision TIG-welded construction ensures maximum strength and consistent fitment while maintaining a premium appearance.
Equipped with electronically controlled exhaust valves, the system allows drivers to switch between refined daily driving and an aggressive performance exhaust note at the touch of a button. The included controller provides factory-like functionality while delivering greater sound control and driving enjoyment.
Finished with quad exhaust tips and engineered for a direct-fit installation, this exhaust system is completely reversible, allowing owners to return the vehicle to stock configuration whenever desired.
Features & Benefits
- Designed for 2012-2018 Audi A8 and Audi S8 models
- Compatible with D4 and D4.5 chassis vehicles
- Engineered for the 4.0L Twin-Turbocharged V8 engine
- Full cat-back exhaust system design
- Improves exhaust flow and reduces back pressure
- Supports increased horsepower and torque potential
- Enhances throttle response and driving engagement
- Available in T304 stainless steel or Grade 5 titanium construction
- Electronic exhaust valves with included controller
- Adjustable exhaust sound levels
- Precision TIG-welded construction
- Includes quad exhaust tips
- Fully reversible installation
- Includes all required mounting hardware
Specifications
- Vehicle Fitment: 2012–2018 Audi A8 & Audi S8
- Chassis: D4 / D4.5
- Engine Compatibility: 4.0L Twin-Turbocharged V8
- Product Line: GCA Performance
- Exhaust Type: Full Cat-Back Exhaust System
- Material Options:
- T304 Stainless Steel
- 6AL-4V Grade 5 Titanium
- Valve System: Electronic Valves with Controller
- Exhaust Tips: Quad Tips Included
- Welding Method: Precision TIG Welded
- Installation Type: Direct Bolt-On
- Reversible: Yes
- Hardware Included: Yes
Important Notes
- Fits 2012-2018 Audi A8 and Audi S8 models equipped with the 4.0L Twin-Turbocharged V8 engine
- Designed as a complete cat-back exhaust system including mid-pipes and axle-back sections
- Electronic valve controller is included
- Professional installation is recommended
- All required mounting hardware is included
- Fully reversible with no permanent modifications required
- Verify vehicle compatibility before ordering
Warranty
All GCA Performance products are backed by a 1-Year Limited Warranty, covering manufacturing defects and workmanship for added confidence and peace of mind.
