Exhaust Manifold Downpipe for Porsche 911 GT2 RS 3.8T 2018+

Available in 200 Cell High-Flow Catted or Catless Configuration

Unlock more performance and a dramatically more aggressive exhaust character from your Porsche 911 GT2 RS with the STRATEC™ Performance Exhaust Manifold Downpipes, engineered for the 3.8L twin-turbo flat-six platform.

Designed to reduce restriction immediately after the turbochargers, these high-flow downpipes improve exhaust-gas evacuation, reduce backpressure, and support increased horsepower and torque potential. Whether you choose the more street-oriented 200-cell high-flow catted version or the maximum-flow catless configuration, STRATEC™ delivers a direct-fit performance upgrade designed for serious GT2 RS builds.

Constructed from premium T304 stainless steel, each set features precision CNC-machined flanges, mandrel-bent tubing, and expert TIG welding for exceptional durability, heat resistance, and fitment.

Configuration Options

200 Cell High-Flow Catted

Designed for enthusiasts looking for increased flow while retaining high-flow catalytic converters.

Features:

• 200 Cell High-Flow Catalytic Converters
• Reduced Exhaust Restriction
• Improved Turbocharger Efficiency
• Increased Performance Potential
• Aggressive Yet Refined Exhaust Note
• Cleaner Exhaust Output Than Catless Configuration

Catless Racing Version

Designed for maximum exhaust flow and minimum restriction.

Features:

• Maximum Exhaust Flow
• Lowest Backpressure
• Faster Turbo Response
• Increased Horsepower Potential
• Significantly More Aggressive Exhaust Sound
• Maximum Turbo & Exhaust Acoustics

Catless components are intended for off-road, closed-course, or competition use where permitted by law.

Premium T304 Stainless Steel Construction

• Automotive-Grade T304 Stainless Steel
• CNC-Machined Turbo Flanges
• Precision Mandrel-Bent Tubing
• Hand TIG-Welded Construction
• Excellent High-Temperature Resistance
• Exceptional Corrosion Resistance
• Smooth Internal Exhaust Transitions

High-Flow Turbo Design

The factory catalytic and downpipe sections can create significant restriction directly after the turbochargers. The STRATEC™ system is engineered with smoother transitions and freer-flowing tubing to help exhaust gases leave the turbochargers more efficiently.

Reducing post-turbo restriction can improve turbocharger response while providing additional flow capacity for tuned and higher-horsepower applications.

Performance Benefits

• Increased Exhaust Flow
• Reduced Turbocharger Backpressure
• Improved Turbo Response
• Sharper Throttle Response
• Increased Horsepower & Torque Potential
• Improved Mid-Range Performance
• Improved High-RPM Exhaust Flow
• More Aggressive Flat-Six Exhaust Tone
• Enhanced Turbocharger Sound

Sound Transformation

Installing high-flow downpipes significantly increases the presence of the GT2 RS exhaust system.

Expect:

• Louder Cold Starts
• More Aggressive Acceleration Sound
• Sharper Flat-Six Exhaust Tone
• Increased Turbo Whistle
• Enhanced Gearshift Acoustics
• Stronger Overrun Character
• More Pronounced High-RPM Sound

The 200-cell configuration maintains a more controlled performance tone, while the catless version provides the most aggressive sound and unrestricted exhaust flow.

Package Includes

• Left Performance Downpipe / Manifold Assembly
• Right Performance Downpipe / Manifold Assembly
• High-Flow Catalytic Converters on 200 Cell Version
• Clamps
• Gaskets Where Applicable
• Required Installation Hardware

Vehicle Fitment

Porsche 911 GT2 RS

• 991.2 GT2 RS
• 2018+
• 3.8L Twin-Turbo Flat-6