BMW G80/G81 M3 Billet Aluminum Port-Injected Intake Manifold – Direct Fuel Injection Support, Enhanced Airflow, Boost Stability & Long-Term Reliability | Fits 2021–2025 (S58 Engine)

Unlock the full fueling and airflow potential of your S58-powered BMW G80/G81 M3 with the BAVMODS® Billet Aluminum Port-Injected Intake Manifold — a precision-engineered upgrade designed for maximum reliability, consistent boost control, and high-performance fueling under extreme load.

Machined from a single block of 6061-T6 aircraft-grade aluminum, this manifold replaces the restrictive factory composite unit with a fully TIG-welded, high-flow design optimized for both stock and high-boost setups. Featuring integrated port fuel injection (PI) provisions, it supports direct fueling upgrades for E85, methanol, or high-power builds exceeding the limits of the factory DI system.

Whether you’re running upgraded turbos, ethanol blends, or advanced tuning setups, this manifold ensures even fuel distribution, stabilized manifold pressure, and improved throttle response across the RPM range. The result — consistent performance, reduced heat soak, and long-term structural reliability even in demanding track conditions.

Visually, the CNC-machined exterior and anodized finish add a motorsport-grade aesthetic to your engine bay, combining strength, precision, and performance refinement.

KEY FEATURES

• 6061-T6 Billet Aluminum Construction – TIG-welded and CNC-machined for maximum durability and boost tolerance.
• Integrated Port Fuel Injection Support – Allows for secondary fueling upgrades for high-performance and ethanol builds.
• Improved Airflow Distribution – Optimized runner geometry enhances cylinder balance and volumetric efficiency.
• Boost Stability Under Load – Maintains consistent pressure even at elevated boost levels and high RPM.
• Enhanced Throttle Response – Faster, smoother power delivery through unrestricted airflow channels.
• Temperature-Resistant Design – Prevents heat soak and structural fatigue during extended performance driving.
• Motorsport-Grade Aesthetics – CNC anodized finish complements any high-performance S58 build.
• Direct Bolt-On Fitment – Designed for precise installation using OEM hardware and sensors.

FITMENT:

BMW M3 – G80 Sedan (2021–2025)

BMW M3 Touring – G81 (2023–2025)

Compatible with S58 Twin-Turbo Inline-6 Engine

Supports both RWD and xDrive variants

Direct bolt-on installation — no permanent modifications required

Please refer to the “Fitment” section in the product description for compatibility details.