BMW F20/F21 M140i Aluminum Turbo Inlet Pipe Upgrade – High-Flow Design, Fortified Reliability, Improved Turbo Response & Heat Resistance | Fits 2016–2019 (B58 Gen 1 Engine)

Unlock improved airflow and long-term reliability with the BAVMODS® Aluminum Turbo Inlet Pipe Upgrade, precision-engineered for the BMW F20/F21 M140i equipped with the B58 Gen 1 engine.

From the factory, the B58’s plastic turbo inlet restricts airflow and can deform or collapse under boost and heat — especially on tuned cars. The BAVMODS® High-Flow Aluminum Turbo Inlet replaces that weak point with a rigid, precision-formed metal body designed for maximum strength and smoother airflow into the turbocharger.

By eliminating turbulence and restriction, this inlet helps your turbo spool faster, maintain steadier boost pressure, and deliver a sharper throttle response you can feel from the first drive. Its matte-textured black finish resists heat and corrosion while giving your engine bay a clean, OEM+ appearance that pairs beautifully with stock or aftermarket intakes.

Whether you’re chasing more consistent boost or simply upgrading for peace of mind, this is one of the smartest reliability and performance mods you can make for your B58-powered 1 Series.

Key Features & Benefits

• High-Strength Aluminum Construction – Eliminates cracking and flex found in the stock plastic pipe.
• Optimized Flow Geometry – Larger internal diameter for smoother, faster airflow to the turbo.
• Enhanced Turbo Response – Improves spool time and mid-range torque delivery.
• Boost-Stable Design – Maintains consistent pressure under high-boost operation.
• Matte Black Finish – Durable coating resists heat and adds an OEM+ look.
• Plug-and-Play Installation – Direct replacement using factory clamps and fittings.
• OEM+ Fit & Feel – Designed to integrate seamlessly with both stock and upgraded intake systems.

Performance You Can Feel

Expect crisper throttle transitions, quicker turbo spool, and more stable boost response across every gear. The rigid aluminum design keeps airflow smooth and consistent even under demanding conditions — perfect for tuned setups or drivers who want to push their M140i’s potential without sacrificing reliability.

Why It Matters

The turbo inlet is one of the most overlooked airflow restrictions on the B58 platform. Upgrading to a BAVMODS® Aluminum Turbo Inlet Pipe ensures you’ll never have to worry about cracks, leaks, or boost inconsistencies again — while gaining measurable improvements in flow and durability.

It’s the ideal balance of strength, efficiency, and visual refinement — engineered for performance and built to last.

FITMENT: BMW 1 Series – F20 / F21 (2016–2019) including

• M140i (B58 Gen 1 Engine)

Also compatible with:

BMW 2 Series – F22 / F23 (2016–2021) M240i (B58 Gen 1 Engine)

BMW 3 Series – F30 / F31 (2015–2019) 340i (B58 Gen 1 Engine)

BMW 4 Series – F32 / F33 / F36 (2016–2020) 440i (B58 Gen 1 Engine)

Compatible with both RWD and xDrive variants across U.S., European, and Asian markets.

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