Deep Tone Industries BMW F97 X3M & F98 X4M Pre-LCI Resonated Wide Single Midpipe (2019-2021)

The DeepTone Industries resonated wide single midpipe for the BMW F97 X3M and F98 X4M (Pre-LCI) is a proven mid-section upgrade designed to refine both exhaust tone and flow without sacrificing everyday usability. Built around a classic wide single-pipe layout and paired with a carefully positioned resonator, this midpipe focuses on the part of the system that defines overall character.

By merging both exhaust banks into a wider, centralised flow path, this design improves exhaust gas velocity and pressure stability through the centre of the system. The addition of a resonator helps manage higher-frequency sound energy, ensuring the exhaust note remains deep, controlled, and composed across a wide range of driving conditions. At cruising speeds, the system stays settled and refined; under load, it opens up with greater depth and presence rather than sharp or metallic noise.

This configuration has long been favoured for its balance of sound quality, flow capability, and reliability on high-output builds. On the F97 and F98 platforms, it offers a well-judged foundation for drivers who want a richer exhaust character while retaining control and refinement, whether paired with the factory rear silencer or an aftermarket back box.

How a Resonated Wide Single Midpipe Affects Tone and Flow

Wide single midpipe layouts are known for smoothing exhaust behaviour by stabilising pressure waves and reducing turbulence. The wider diameter supports consistent gas flow as power levels increase, while the resonator plays a key role in controlling unwanted high-frequency noise.

In real-world driving, this results in a deeper, more cohesive exhaust note with improved clarity across the rev range. The sound develops progressively, remaining composed during light throttle and gaining weight and character as the engine is pushed. It’s a configuration that prioritises balance and consistency, rather than chasing outright volume.

With proven capability on four-figure power applications, this midpipe is well suited to drivers planning future upgrades while still wanting a refined, usable setup for daily driving and fast road use.

Key Features

• Proven resonated wide single midpipe design

• Improves exhaust gas flow consistency and pressure stability

• Resonator reduces harsh frequencies and refines sound output

• Delivers a deeper, more controlled and cohesive exhaust tone

• Smooths sound behaviour across the rev range

• Suitable for high-output applications, including four-figure power builds

• Designed for daily driving and spirited road use

• Compatible with factory or aftermarket rear silencers

• Supplied with a 1 Year DeepTone Industries warranty

Compatibility

• BMW F97 X3M (2019–2021, Pre-LCI)

• BMW F98 X4M (2019–2021, Pre-LCI)

• 3.0-litre S58 twin-turbo inline-six engines

Why Choose DeepTone Industries?

DeepTone Industries focuses exclusively on the part of the exhaust system that defines how a car sounds and feels. By specialising in downpipes and midpipes only, DeepTone delivers proven exhaust layouts that improve tone and flow without unnecessary redesigns or inflated costs. These designs are refined through real-world use and backed by a 1 Year warranty for the original owner, offering confidence alongside strong value. It’s an approach built for drivers who care about depth, balance, and consistency rather than noise alone.

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

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