OAO High Performance Downpipes for BMW F87 M2 / F80 M3 / F82 M4 S55 3.0T Twin-Turbo Inline-6 T304 Stainless Steel Exhaust System

Unlock the True Performance of the Legendary S55 Platform

Designed specifically for the BMW F87 M2 Competition, F80 M3, and F82 M4 equipped with the S55 3.0L twin-turbocharged inline-six engine, the OAO High Performance Downpipes are engineered to dramatically improve exhaust flow, reduce restriction, and unlock the full performance potential of the S55 platform.

By optimizing exhaust gas evacuation directly after the turbochargers, this system enhances turbo response, improves throttle sensitivity, and delivers a more aggressive and motorsport-inspired exhaust character.

Constructed from premium T304 stainless steel and precision TIG welded throughout, the OAO downpipes ensure exceptional durability, heat resistance, and OEM-level fitment.

Key Features

✓ Designed for BMW F87 M2 Competition / F80 M3 / F82 M4

✓ S55 3.0L Twin-Turbocharged Inline-6 Platform

✓ Premium T304 Stainless Steel Construction

✓ High-Flow Performance Downpipe Design (Left & Right Set)

✓ Precision TIG Welded

✓ Mandrel-Bent Tubing Structure

✓ Improved Exhaust Gas Flow Efficiency

✓ Reduced Exhaust Backpressure

✓ Enhanced Turbocharger Response

✓ Sharper Throttle Reaction

✓ More Aggressive Exhaust Sound Character

✓ OEM-Level Fitment

Why Upgrade Your Downpipes?

The factory downpipes are designed to meet strict emissions, noise, and durability requirements, which limits the full performance and sound potential of the S55 engine.

The OAO High Performance Downpipes are developed for enthusiasts seeking sharper response, improved airflow, and a more engaging driving experience.

Potential benefits may include:

• Faster Turbo Spool Response

• Improved Exhaust Flow Efficiency

• Reduced Exhaust Restriction

• Sharper Throttle Response

• Enhanced Engine Responsiveness

• More Aggressive Exhaust Sound

Actual performance gains may vary depending on ECU tuning and supporting modifications.

Performance Engineering Focus

The OAO downpipes are engineered to optimize exhaust gas evacuation immediately after each turbocharger, improving system efficiency and reducing turbulence.

Benefits include:

• Improved Exhaust Flow Dynamics

• Reduced Backpressure

• Enhanced Turbocharger Efficiency

• Better High-RPM Breathing

• Improved Compatibility with Performance Exhaust Systems

Designed to fully unlock the aggressive character of BMW’s S55 twin-turbo performance platform.

Sound Characteristics

The OAO S55 downpipes enhance the factory exhaust tone with a deeper, louder, and more motorsport-focused character.

Drivers may experience:

• Deeper Exhaust Tone

• Stronger Turbo Spool Sound

• Enhanced Blow-Off Acoustics

• More Aggressive Acceleration Note

• Sharper Overrun Character

• Increased Exhaust Volume

Sound output will vary depending on full exhaust configuration and catalyst selection.

Premium T304 Stainless Steel Construction

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

Advantages include:

• Excellent Corrosion Resistance

• Superior Heat Resistance

• Long Service Life

• High Structural Strength

• Motorsport-Grade Engineering

Each unit is precision TIG welded and individually inspected before shipment.

Vehicle Fitment

Compatible with:

• BMW M2 Competition (F87 S55)

• BMW M3 (F80)

• BMW M3 Competition (F80)

• BMW M4 (F82 / F83)

• BMW M4 Competition (F82 / F83)

Engine Platform

• S55 3.0L Twin-Turbocharged Inline-6

Model Years

• 2014

• 2015

• 2016

• 2017

• 2018

• 2019

Please verify your vehicle configuration and exhaust setup before ordering.

Package Includes

• OAO High Performance Downpipes (Left & Right Set)

• Installation Hardware Kit

• Protective Packaging

Installation

Direct bolt-on design utilizing factory mounting points.

Professional installation is strongly recommended for optimal fitment and performance.

ECU calibration is highly recommended to maximize performance gains and prevent potential warning lights.

Important Notes

Please check local emissions regulations before installation.

This product is intended for off-road or motorsport use where permitted by law.

Why Choose OAO Performance

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

From downpipes and headers to valved cat-back systems and titanium exhaust solutions, every OAO product is engineered to deliver precision fitment, durability, and a truly engaging driving experience.

Upgrade your BMW S55 platform with sharper response, improved exhaust flow, and the unmistakable performance character of OAO Performance.