Autowerke Active Single Mid-Pipe – Compatible with BMW F80 M3 & F82 M4

Description

The Active Autowerke Mid Pipe for the BMW F80 M3 & F82/F83 M4 (S55) is a performance-focused exhaust upgrade that replaces the restrictive factory mid-section with a single, large-diameter pipe engineered for improved flow and throttle response. By eliminating the OEM crossover silencers and free-flowing the exhaust path, this mid pipe reduces backpressure, helps turbochargers spool quicker, and delivers a deeper, more harmonious exhaust tone that transforms the S55’s sound character — particularly when combined with an aftermarket rear exhaust.

Fitment Notes

• Fits BMW F80 M3 and F82/F83 M4 with the S55 3.0 L twin-turbo engine.

• Replaces the factory mid-section exhaust; retains connection points for stock or aftermarket rear components.

• Best results when paired with an aftermarket rear exhaust system (e.g., Active Autowerke rear or other performance cat-back).

• May require an off-road waiver from Active Autowerke for shipment/installation (company policy).

Included

• Active Autowerke mid pipe assembly engineered for optimal fitment and clearance.

• Integrated Active F-brace for added underbody rigidity and precise mounting.

• Mounting hardware and installation instructions.

Product Specs

• Pipe Diameter: ~3.5″ oval main section designed for less restriction and improved exhaust flow.

• Material: Precision TIG-welded stainless steel for strength and corrosion resistance.

• Fitment: Direct bolt-on mid section; retains OEM flanges and connects with stock or aftermarket rear sections.

• Weight: Lighter than stock mid pipe, contributing to reduced mass and quicker response.

• Installation: Bolt-on; no cutting or welding required using OEM exhaust hangers and couplers.

Product Features

• Less restrictive exhaust flow reduces backpressure and enhances turbo efficiency.

• Quicker turbo spool and improved throttle response versus stock mid pipe.

• Deeper, richer exhaust tone that eliminates the high-pitched “weed-eater” sound common to stock S55 mid sections.

• Lighter than OEM mid pipe for slight weight savings and performance feel.

• Precision fitment ensures smooth integration with factory hangers and rear exhaust components.

• Single-pipe design simplifies flow dynamics and improves exhaust scavenging.

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