BMW B58 Gen 2 G-Series M340i/M440i/M240i Turbo Inlet Pipe

BMW B58 Gen 2 G-Series M340i/M440i/M240i Turbo Inlet Pipe

Maximise the performance of your BMW B58 Gen 2 engine with this High-Performance Turbo Inlet Pipe, engineered to improve airflow into the turbocharger, reduce intake restriction, and deliver faster turbo response, increased airflow, and improved engine efficiency.

Designed specifically for BMW G-Series vehicles equipped with the Gen 2 B58 engine, this upgraded turbo inlet replaces the restrictive factory plastic inlet with a larger diameter, free-flowing design. By allowing the turbocharger to breathe more efficiently, it improves turbo spool, throttle response, and overall performance while supporting higher boost levels on tuned vehicles.

Manufactured from high-quality CNC-machined aluminium with a smooth internal flow path, this turbo inlet offers exceptional durability, excellent heat resistance, and long-term reliability while maintaining an OEM-style fit.

Whether your vehicle is completely stock or running Stage 1, Stage 2, or upgraded turbochargers, this Turbo Inlet Pipe is an excellent supporting modification to unlock the full potential of your B58 engine.

Key Features

Increased Airflow

Larger internal diameter provides significantly improved airflow into the turbocharger compared to the restrictive factory inlet.

Faster Turbo Spool

Improved airflow helps the turbocharger spool more quickly, delivering sharper throttle response and stronger acceleration.

CNC-Machined Aluminium Construction

Manufactured from premium CNC-machined aluminium for exceptional strength, durability, and heat resistance.

Smooth Internal Flow Path

Optimised internal design reduces airflow turbulence and restriction, maximising turbocharger efficiency.

OEM-Style Fitment

Engineered specifically for BMW B58 Gen 2 G-Series vehicles to ensure precise fitment and hassle-free installation.

Direct Bolt-On Installation

Installs directly in place of the factory turbo inlet using the original mounting locations without permanent modifications.

Performance Benefits

Improved Turbo Response

Allows the turbocharger to breathe more efficiently, resulting in quicker spool and improved throttle response.

Increased Airflow Capacity

Supports higher airflow demands for tuned vehicles and upgraded turbocharger applications.

Supports Higher Horsepower Builds

An excellent supporting modification for Stage 1, Stage 2, ethanol blends, and hybrid turbo setups.

Enhanced Induction Sound

Produces a more noticeable turbo induction sound and increased turbo spool noise, especially when paired with an aftermarket intake system.

Vehicle Fitment

BMW G20 M340i (2020+)
BMW G21 M340i Touring (2020+)
BMW G22 M440i Coupe (2021+)
BMW G23 M440i Convertible (2021+)
BMW G26 M440i Gran Coupe (2021+)
BMW G42 M240i (2022+)

Engine: BMW B58 Gen 2 3.0L Turbocharged Inline-6

Please Note

Professional installation is recommended.

This turbo inlet is designed for B58 Gen 2 G-Series vehicles only and is not compatible with earlier B58 Gen 1 applications.

Compatible with the factory air intake as well as most aftermarket intake systems designed for the OEM turbocharger.

Why Choose Proven Performance Parts

We specialise in high-performance parts for European vehicles — including Volkswagen GTI & R models, Audi S/RS platforms, and BMW M vehicles. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.