OAO Valved Cat-Back Exhaust System for Porsche 992 GT3 / GT3 RS 4.0L Naturally Aspirated Flat-6 T304 Stainless Steel Performance Exhaust 2021+

Unleash the Pure Sound of the Porsche Motorsport Flat-Six

Designed specifically for the Porsche 992 GT3 and 992 GT3 RS, the OAO Valved Cat-Back Exhaust System is engineered to maximize acoustic excitement while preserving the unmistakable character of Porsche's naturally aspirated 4.0L flat-six engine.

Inspired by motorsport engineering, this system enhances exhaust flow, reduces restriction, and amplifies the high-revving soundtrack that makes the GT3 platform one of the most celebrated performance cars in the world.

Constructed from premium T304 stainless steel and precision TIG welded throughout, the OAO exhaust system delivers exceptional durability, lightweight performance, and OEM-quality fitment.

Key Features

✓ Designed for Porsche 992 GT3 & 992 GT3 RS

✓ Naturally Aspirated 4.0L Flat-6 Platform

✓ Premium T304 Stainless Steel Construction

✓ Electronic Valved Exhaust System

✓ High-Flow Cat-Back Design

✓ Precision TIG Welded

✓ Direct Bolt-On Installation

✓ Enhanced Exhaust Flow Efficiency

✓ Reduced Exhaust Restriction

✓ Motorsport-Inspired Sound Character

✓ Lightweight Performance Construction

✓ OEM-Level Fitment

Intelligent Valve Control System

Touring Mode

With the valves closed, the system delivers a refined and controlled exhaust note suitable for daily driving and long-distance touring.

Perfect for:

• Daily Driving

• Highway Cruising

• Urban Environments

• Reduced Cabin Noise

Track Mode

Open the valves and unleash the full potential of the naturally aspirated Porsche flat-six.

Benefits include:

• Increased Exhaust Volume

• Sharper High-RPM Acoustics

• Enhanced Engine Presence

• Stronger Overrun Characteristics

• More Engaging Driving Experience

• True Motorsport Sound Experience

Performance Benefits

The OAO Cat-Back Exhaust System is engineered to improve exhaust efficiency while enhancing the emotional connection between driver and machine.

Potential benefits may include:

• Improved Exhaust Flow

• Reduced Backpressure

• Enhanced Engine Breathing

• Sharper Throttle Response

• Improved High-RPM Performance Feel

• Increased Driver Engagement

Actual performance results may vary depending on vehicle configuration and supporting modifications.

Sound Characteristics

The OAO GT3 exhaust system is carefully tuned to highlight the unique character of Porsche's 4.0L naturally aspirated engine.

Drivers may experience:

• Deep and Mechanical Idle Tone

• Rich Mid-Range Flat-Six Character

• Sharper Induction and Exhaust Acoustics

• Formula-Inspired High-RPM Sound

• Increased Exhaust Clarity Above 7,000 RPM

• Exotic Motorsport Exhaust Signature

Designed to preserve the authentic GT3 driving experience while delivering a more emotional and engaging soundtrack.

Premium T304 Stainless Steel Construction

Manufactured from high-grade T304 stainless steel for maximum durability and performance.

Advantages include:

• Excellent Corrosion Resistance

• Superior Heat Resistance

• Reduced Weight Compared to OEM Components

• Long Service Life

• Motorsport-Grade Construction

Each exhaust system is precision TIG welded and individually inspected before shipment.

Vehicle Fitment

Compatible with:

• Porsche 992 GT3

• Porsche 992 GT3 Touring

• Porsche 992 GT3 RS

Engine Platform

• 4.0L Naturally Aspirated Flat-6

Model Years

• 2021+

• 2022+

• 2023+

• 2024+

• 2025+

• 2026+

Please verify vehicle specifications and exhaust configuration before ordering.

Package Includes

• OAO Valved Cat-Back Exhaust System

• Electronic Valve Control Module

• Remote Controllers

• Installation Hardware Kit

• Protective Packaging

Installation

Direct bolt-on design utilizing factory mounting locations.

Professional installation is strongly recommended to ensure optimal fitment and performance.

Why Choose OAO Performance

OAO specializes in premium performance exhaust systems for Porsche GT models, BMW M, Mercedes-AMG, Audi RS, Ferrari, Lamborghini, and other high-performance platforms.

From valved cat-back systems and headers to titanium exhaust solutions and OEM/ODM manufacturing, every OAO product is engineered to deliver exceptional craftsmanship, precision fitment, sound quality, and driving excitement.

Transform your Porsche 992 GT3 or GT3 RS with a motorsport-inspired exhaust experience worthy of its racing heritage.