MAD BMW S58 G80 G82 G87 F97 F98 M3 M4 M2 X3M X4M High Flow Inlets

Unleash the full airflow potential of your BMW S58 engine with the MAD High Flow Turbo Inlets. Designed for performance-focused enthusiasts, these CNC billet inlet pipes replace the restrictive factory units to improve airflow, turbo response, and overall efficiency. Whether you are running the stock intake or an aftermarket intake that uses the factory connection size, these inlets are a direct fit.

Precision machined from solid billet aluminum, the MAD S58 High Flow Inlets feature smooth internal transitions and optimized geometry to reduce turbulence before the turbochargers. This results in faster spool, improved throttle response, and stronger mid to high RPM performance without sacrificing reliability or fitment.

Key benefits

CNC billet aluminum flanges
Machined from high-quality billet aluminum for strength, heat resistance, and smooth unrestricted airflow.

Improved airflow and turbo response
Larger internal diameter and optimized design reduce intake restriction, helping the turbos spool quicker and breathe more efficiently.

Direct bolt-on installation
Designed to install without modification using factory mounting points and hardware locations.

Stock and aftermarket intake compatible
Fits the factory intake system and aftermarket intakes that retain the stock inlet connection size.

Ideal for stock or upgraded setups
Perfect for stock turbo vehicles and works seamlessly with tuned setups looking for improved airflow efficiency.

Performance specs

Bank 1
Turbo side: 54mm (OEM 45mm)
Inlet: 67mm (OEM 65mm)

Bank 2
Turbo side: 54mm (OEM 45mm)
Inlet: 57mm (OEM 54mm)

Vehicle fitment

BMW G80 M3 S58
BMW G82 M4 S58
BMW G87 M2 S58
BMW F97 X3M S58 (LCI 2022+ only)
BMW F98 X4M S58 (LCI 2022+ only)

What’s included

CNC billet aluminum high flow turbo inlet pipes
Required mounting provisions for straightforward installation

If you are looking to remove a known airflow bottleneck on the S58 platform, the MAD High Flow Turbo Inlets deliver measurable performance gains, sharper response, and OEM-level fitment with aftermarket performance benefits.