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

$319.00
SKU:
MAD-146
Weight:
6.00 LBS
Shipping:
Calculated at Checkout

AVAILABLE ON 15th Sep 2026

Description

Maximize Airflow and Turbo Performance for Your BMW S58

Unlock the true performance potential of your BMW S58-powered vehicle with the MAD High Flow Turbo Inlets. Engineered to eliminate the airflow restrictions of the factory inlet pipes, these precision CNC-machined billet aluminum inlets deliver increased airflow, quicker turbo spool, improved throttle response, and enhanced power throughout the RPM range.

Designed as a direct bolt-on upgrade, the MAD High Flow Inlets are compatible with the factory intake system as well as aftermarket intake systems that retain the OEM inlet connection size. Whether your vehicle is stock, tuned, or equipped with additional performance modifications, these high-flow inlets provide the airflow needed to maximize your turbochargers' efficiency.

Manufactured from premium billet aluminum, each inlet features optimized internal geometry with smooth transitions that minimize turbulence before the turbochargers. The result is more efficient airflow, reduced restriction, improved turbocharger response, and increased performance without compromising factory fitment or long-term reliability.

Features & Benefits

  • Precision CNC-machined billet aluminum construction
  • Larger internal diameter than factory inlets for increased airflow
  • Reduces intake restrictions before the turbochargers
  • Faster turbo spool and improved throttle response
  • Enhanced mid-range and top-end performance
  • Smooth internal passages reduce airflow turbulence
  • Direct bolt-on installation with no cutting or modifications required
  • Compatible with factory air intake systems
  • Works with aftermarket intakes that utilize the OEM inlet connection size
  • Excellent upgrade for stock, tuned, and upgraded turbo applications
  • Durable corrosion-resistant aluminum construction
  • OEM-quality fit and finish

Performance Specifications

Bank 1

  • Turbo Side: 54mm (Factory: 45mm)
  • Intake Side: 67mm (Factory: 65mm)

Bank 2

  • Turbo Side: 54mm (Factory: 45mm)
  • Intake Side: 57mm (Factory: 54mm)

The increased inlet diameters help reduce pressure drop and allow the turbochargers to draw air more efficiently, supporting greater airflow for improved overall engine performance.

Vehicle Fitment

Compatible with BMW models equipped with the S58 twin-turbo engine, including:

  • BMW G80 M3
  • BMW G82 M4
  • BMW G87 M2
  • BMW F97 X3 M
  • BMW F98 X4 M

Installation

The MAD High Flow Turbo Inlets are engineered as a direct replacement for the restrictive factory inlet pipes and utilize the original mounting locations for straightforward installation.

Important Installation Notice

Before installing the MAD High Flow Turbo Inlets, the factory turbo inlet O-ring must be removed from the turbocharger.

Failure to remove the factory O-ring may prevent proper sealing and installation, potentially causing damage to the turbocharger.

Professional installation is recommended.

What's Included

  • (2) CNC Billet Aluminum High Flow Turbo Inlet Pipes
  • Integrated mounting provisions
  • Ready for direct installation

Why Upgrade to MAD High Flow Turbo Inlets?

The factory S58 turbo inlets create a restriction before the turbochargers, limiting airflow and overall turbo efficiency. The MAD High Flow Turbo Inlets increase the available airflow while maintaining factory-like fitment, allowing the turbochargers to operate more efficiently. The result is quicker boost response, improved throttle feel, stronger acceleration, and increased performance potential—especially when paired with ECU tuning and other airflow upgrades.

Whether you're building a daily-driven street car or a dedicated performance machine, the MAD High Flow Turbo Inlets provide one of the most effective airflow upgrades for the BMW S58 platform.