Maximize the performance and sound of your BMW S63-powered M5 or M6 with the STRATEC™ High-Performance Downpipes. Precision-engineered for the 4.4L Twin-Turbo V8, these downpipes significantly improve exhaust flow, reduce turbo backpressure, and unleash a more aggressive exhaust note while enhancing throttle response and overall engine performance.

Constructed from premium automotive-grade T304 stainless steel, every STRATEC™ downpipe is CNC-manufactured and hand TIG welded to ensure exceptional durability, corrosion resistance, and OEM-quality fitment.

Available in 200-Cell High-Flow Sport Catalytic or Catless Race configurations, STRATEC™ Downpipes allow you to choose the perfect balance between performance and your intended application. For added convenience, the catless version includes O₂ sensor spacers to help reduce the likelihood of catalyst efficiency fault codes when used on applicable vehicles.

Whether paired with the factory exhaust or an aftermarket cat-back system, STRATEC™ Downpipes unlock the true sound and performance potential of the S63 twin-turbo V8.

Available Configurations

200-Cell High-Flow Sport Catalytic Downpipes

• Premium 200 CPSI High-Flow Catalytic Converters
• Increased Exhaust Flow
• Reduced Restriction Compared to Factory
• Improved Turbo Efficiency
• Enhanced Performance While Retaining High-Flow Catalysts

Catless Race Downpipes

• Maximum Exhaust Flow
• Eliminates Catalytic Restrictions
• Maximum Horsepower & Torque Potential
• Faster Turbo Spool
• Aggressive Motorsport Exhaust Note
• Includes O₂ Sensor Spacers
• Intended for Off-Road & Competition Use

Material

• Premium Automotive-Grade T304 Stainless Steel
• CNC Machined Flanges
• Mandrel-Bent Tubing
• Hand TIG-Welded Construction

Premium Features

• Direct Bolt-On Installation
• Available in 200-Cell High-Flow or Catless Configurations
• Optimized Exhaust Flow
• Reduced Backpressure
• Faster Turbo Spool
• Improved Throttle Response
• Increased Horsepower & Torque Potential
• Precision CNC Manufacturing
• OEM-Quality Fitment
• Excellent Heat & Corrosion Resistance
• Compatible with Factory and Aftermarket Cat-Back Exhaust Systems

Package Includes

• Left Performance Downpipe
• Right Performance Downpipe
• Installation Hardware
• Gaskets (Where Applicable)

Catless Version Includes:

• (2) O₂ Sensor Spacers

Performance Benefits

• Increased Exhaust Flow
• Reduced Turbo Backpressure
• Faster Turbo Response
• Increased Horsepower & Torque Potential
• Improved Engine Efficiency
• Sharper Throttle Response
• Enhanced Turbo Sound
• More Aggressive Twin-Turbo V8 Exhaust Note

Vehicle Fitment

BMW F10 M5

• 2012-2016
• 4.4L Twin-Turbo V8 (S63)

BMW F06 M6 Gran Coupe

• 2013-2019
• 4.4L Twin-Turbo V8 (S63)

BMW F12 M6 Convertible

• 2012-2019
• 4.4L Twin-Turbo V8 (S63)

BMW F13 M6 Coupe

• 2012-2019
• 4.4L Twin-Turbo V8 (S63)

Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.