BMW M3 M4 F80 F82 S55 Single Midpipe

Upgrade the exhaust system of your BMW M3 F80 or M4 F82/F83 with this S55 304 Stainless Steel Single Midpipe, designed to enhance exhaust sound, improve flow, and create a more aggressive driving experience.

This single midpipe removes the factory resonator and secondary catalytic converters, helping bring out a stronger exhaust note even when paired with the stock muffler. The design helps reduce restriction while supporting better exhaust flow through the system.

Built from 304 stainless steel, this midpipe features smooth flange-to-pipe transitions, internally welded and polished flange sections, and multiple flange thicknesses for strong construction and improved sound performance.

Product Specifications

Key Features

• Designed for BMW M3 F80 and M4 F82/F83 models with the S55 engine
• 304 stainless steel construction for strength and durability
• Single midpipe design enhances exhaust tone and flow
• Removes the factory resonator and secondary catalytic converters
• Helps reduce exhaust restriction and backpressure
• Can improve sound even when used with the stock muffler
• Smooth connection between flange and pipes
• Internally welded flange with polished interior surface for improved airflow
• Uses 10mm, 12mm, and 15mm flange thicknesses

Configuration Options

• 304 stainless steel S55 single midpipe

Package Includes

• 1 x Single Midpipe

Note: This exhaust component removes the resonator and secondary catalytic converters. Please confirm local emissions and road-use regulations before installation. Professional installation is recommended.

Installation

• Installs into the factory midpipe section
• Designed to connect between factory exhaust flange and rear exhaust section
• Test fit before final installation
• Ensure all clamps, flanges, and exhaust connections are properly secured
• Professional installation is recommended for best fitment and sound results

Fitment

• 2015-2019 BMW M3 F80 Sedan
• 2015-2020 BMW M4 F82 Coupe
• 2015-2020 BMW M4 F83 Convertible

United States: Free shipping available to the lower 48 states across all items. Other states will incur a shipping charge.

Worldwide: Free shipping is available for Complete Headlights, Taillights, DRLs. For custom headlight retrofits, carbon fiber products, and performance products, there will be a shipping charge.  

Please note:
• For Retrofits, you are purchasing a headlight modification service.
• If you select "Shipping own headlights to BayOptiks for modification", you are required to send us your headlights.
• If you choose "Purchase new OEM headlights", we will order and modify a new OEM headlight for you.
• Once your customizations are complete, we will ship it to you!

• Complete Headlights: 3-5 business days for order processing plus shipping time.
• Custom & Pre-Built Headlights: 6-8 weeks depending on the complexity and component availability.
• New OEM and cores: 6-8 weeks plus an additional 4-8 weeks as these are special orders base on the vehicle VIN due to different versions (North American, European, etc.)
• DRLs, Taillights, Brake Pads, and Carbon Fiber Aero: 3-5 business days for order processing, plus shipping time.
• Lens Replacements: 1-3 weeks plus shipping time.

Please note, we do not have control over the time frames of our vendors, manufacturers, and delivery services as they may delay processes in regards to components and shipment.