OAO Performance Headers for Porsche 911 Carrera 991.1 3.4L / 3.8L T304 Stainless Steel Exhaust Manifold 2012-2016

Unlock the True Sound of Your Naturally Aspirated Flat-Six

Designed specifically for the Porsche 911 Carrera 991.1 platform, the OAO Performance Headers are engineered to improve exhaust flow, enhance engine breathing, and unleash the iconic sound of Porsche's naturally aspirated flat-six engine.

Featuring a high-flow header design, these exhaust manifolds help optimize exhaust gas evacuation, allowing the engine to operate more efficiently across the RPM range while delivering a sharper and more motorsport-inspired exhaust note.

Manufactured from premium T304 stainless steel and precision TIG welded construction, the OAO header system is built for exceptional durability, performance, and fitment accuracy.

Key Features

✓ Designed for Porsche 911 Carrera 991.1

✓ Compatible with 3.4L & 3.8L Naturally Aspirated Flat-Six Engines

✓ High-Flow Performance Header Design

✓ Premium T304 Stainless Steel Construction

✓ Precision TIG Welded

✓ Mandrel-Bent Tubing Construction

✓ Improved Exhaust Flow Efficiency

✓ Enhanced Engine Breathing

✓ Reduced Exhaust Restriction

✓ Motorsport-Inspired Exhaust Character

✓ Direct Bolt-On Installation

✓ OEM-Level Fitment

Why Upgrade Your Headers?

Factory exhaust manifolds are designed to balance emissions requirements, packaging limitations, and long-term durability.

The OAO Performance Headers are engineered to optimize exhaust flow and improve the responsiveness of the naturally aspirated engine.

Potential benefits may include:

• Improved Exhaust Gas Evacuation

• Enhanced Throttle Response

• Reduced Exhaust Restriction

• Improved High-RPM Breathing

• More Engaging Engine Character

• Sharper Exhaust Acoustics

Actual performance results may vary depending on ECU calibration and supporting modifications.

Performance-Oriented Engineering

The OAO header system is designed to create a smoother exhaust path directly from the cylinder heads.

Advantages include:

• Improved Exhaust Pulse Flow

• Reduced Turbulence

• Enhanced Exhaust Efficiency

• Better High-RPM Performance Characteristics

• Improved Compatibility with Performance Exhaust Systems

Designed for enthusiasts seeking a more connected and exhilarating driving experience.

Sound Characteristics

The OAO headers are tuned to enhance the natural character of the Porsche flat-six engine.

Potential sound improvements include:

• Deeper Idle Tone

• Sharper Mid-Range Acoustics

• Increased Flat-Six Presence

• More Aggressive High-RPM Sound

• Motorsport-Inspired Exhaust Note

• Enhanced Driver Engagement

Perfect for enthusiasts who appreciate the unmistakable sound of a naturally aspirated Porsche engine.

Premium T304 Stainless Steel Construction

Manufactured from high-grade T304 stainless steel for maximum durability and long-term reliability.

Advantages include:

• Excellent Corrosion Resistance

• High Temperature Durability

• Superior Structural Strength

• Long Service Life

• Lightweight Motorsport Construction

Every header system is handcrafted and precision TIG welded to ensure exceptional quality and fitment.

Vehicle Fitment

Compatible with:

• Porsche 911 Carrera (991.1)

• Porsche 911 Carrera S (991.1)

• Porsche 911 Carrera 4 (991.1)

• Porsche 911 Carrera 4S (991.1)

• Porsche 911 Targa 4 (991.1)

• Porsche 911 Targa 4S (991.1)

Engine Platforms

• 3.4L Naturally Aspirated Flat-Six

• 3.8L Naturally Aspirated Flat-Six

Model Years

• 2012

• 2013

• 2014

• 2015

• 2016

Please verify your vehicle specifications before ordering.

Package Includes

• 1 Set OAO Performance Headers

• Installation Hardware

• Protective Packaging

Installation

Direct bolt-on design engineered for factory mounting locations.

Professional installation is strongly recommended.

Additional ECU calibration may be beneficial when combined with other performance modifications.

Why Choose OAO Performance

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

From headers and downpipes to valved exhaust systems and titanium exhaust solutions, every OAO product is engineered to deliver exceptional craftsmanship, fitment accuracy, sound quality, and driving enjoyment.

Transform your Porsche 991.1 Carrera with the sound, response, and character only a naturally aspirated flat-six can deliver.