MST Performance BMW 240i, 340i, 440i & Z4 3.0T B58 (2019+) Intake Hose

MST Performance Intake Hose for BMW B58 3.0T – 240i, 340i, 440i & Z4 (2019+)

This intake hose from MST Performance is a direct replacement for the standard plastic inlet pipe on BMW’s B58 3.0 turbo engine. It’s a straightforward upgrade that removes a known restriction in the factory intake system, helping the turbocharger breathe more freely and respond more quickly.

The OEM (original equipment manufacturer) plastic pipe includes a built-in muffler section – a noise-dampening valve that reduces intake sound but also limits airflow. MST replace this with a high-quality silicone hose that eliminates the restriction and removes the muffler entirely. The smooth interior surface of the silicone pipe encourages a more consistent, unrestricted flow of air into the turbo.

What Does It Actually Do?

The B58 engine is a strong performer from the factory, but like most modern turbocharged engines, it has areas where cost and noise regulations mean the standard components aren’t as free-flowing as they could be. This intake hose addresses one of those areas directly. By improving airflow to the turbocharger, you can expect slightly sharper throttle response and a modest improvement in power output – particularly noticeable during hard acceleration.

It’s worth being clear: this is an intake hose upgrade, not a full induction kit. The gains are real but modest on their own. It works best as part of a wider set of bolt-on upgrades, or as a foundation for further tuning.

Key Features

• Replaces the restrictive OEM plastic inlet pipe with a high-grade silicone hose
• Removes the factory muffler valve, improving airflow and enhancing intake sound
• Heat-resistant silicone construction – more durable than the original plastic design
• Retains the standard airbox – no additional modifications needed
• Direct bolt-on fitment with no cutting, fabricating, or remapping required

No remap is required to fit this hose. It is a plug-and-play replacement that works within the factory engine management system.

Vehicle Fitment

This intake hose is designed for BMW G-series models and the Toyota Supra fitted with the 3.0T B58 engine from 2019 onwards, including the BMW 240i, 340i, 440i, Z4, and the Toyota GR Supra (A90/A91). Use the vehicle lookup tool on this page to confirm compatibility with your specific model, or check the Vehicle Fitment tab for the full list of compatible applications.