DCE Parts BMW G22, G23 & G26 OPF/GPF M440i Resonator Delete Midpipe

Enhance the sound and performance of your BMW B58-powered M440i with the DCE Parts OPF/GPF Resonator Delete Midpipe for the G22 Coupé, G23 Convertible and G26 Gran Coupé. Manufactured from high-quality stainless steel, this performance exhaust upgrade replaces the restrictive factory resonator section, delivering a deeper exhaust note, improved throttle response and enhanced driving character.

Developed specifically for OPF/GPF-equipped European-market vehicles, this midpipe provides a more engaging exhaust experience without the need to replace the entire exhaust system. By reducing restriction within the factory exhaust path, the DCE Parts midpipe helps unlock additional performance in the lower and mid-range RPMs while allowing the B58 engine to produce a more aggressive and purposeful sound.

Professionally cross-referenced and fitment verified, this upgrade is suitable for both left-hand-drive and right-hand-drive vehicles and is backed by DCE Parts' comprehensive 2-year warranty.

Key Features

• Designed specifically for BMW G22, G23 & G26 M440i models
• Stainless steel construction
• Replaces the factory resonator section
• Designed for OPF/GPF-equipped vehicles
• Improved throttle response
• Enhanced lower and mid-range performance
• Deeper and more aggressive exhaust note
• Lighter than the factory exhaust section
• Precision-engineered fitment
• Suitable for both RHD and LHD vehicles
• 2-year warranty

Enhanced Exhaust Sound

The factory exhaust system on the BMW M440i is designed to prioritise refinement and emissions compliance. While effective, this can mute some of the character of the B58 engine.

The DCE Parts Resonator Delete Midpipe helps restore a more engaging exhaust note by:

• Increasing exhaust volume
• Enhancing turbocharged six-cylinder character
• Delivering a deeper tone
• Improving driver engagement
• Retaining OEM-style fitment

The result is a more purposeful soundtrack that better matches the performance credentials of the M440i.

Improved Throttle Response

By reducing exhaust restriction compared to the factory resonator section, the midpipe helps improve exhaust gas flow.

Potential benefits include:

• Sharper throttle response
• Improved turbocharger response
• Enhanced low and mid-range performance
• Reduced exhaust backpressure
• More responsive driving experience

This makes the vehicle feel more eager and engaging during everyday driving and spirited use.

Premium Stainless Steel Construction

Manufactured from high-quality stainless steel, the DCE Parts midpipe is designed to withstand the demands of both daily driving and performance use.

Benefits include:

• Excellent corrosion resistance
• Long-term durability
• Reduced weight compared to OEM components
• Precision fitment
• High-quality welds and construction

Fitment Verified

DCE Parts products undergo professional cross-referencing and fitment verification to ensure compatibility and straightforward installation.

This midpipe is compatible with both:

• Right-Hand Drive (RHD) vehicles
• Left-Hand Drive (LHD) vehicles

Compatibility

BMW G22 M440i Coupé

• BMW G22 M440i

BMW G23 M440i Convertible

• BMW G23 M440i

BMW G26 M440i Gran Coupé

• BMW G26 M440i

Suitable for OPF/GPF-equipped models.

What's Included?

• 1x DCE Parts OPF/GPF Resonator Delete Midpipe
• Installation hardware where supplied by manufacturer

Important Information

Motorsport and Off-Road Use Only

This product may alter or affect factory emissions-control systems and may not be legal for road use in certain countries or regions.

It is the purchaser's responsibility to ensure compliance with all local laws, regulations and vehicle inspection requirements before installation.

For customers in the United States, this product is intended for off-road, racing or competition use only and is not legal for use on pollution-controlled vehicles operated on public roads.

Why Choose DCE Parts?

DCE Parts develops high-quality performance upgrades designed to offer:

• Proven fitment
• Premium materials
• Improved vehicle performance
• Enhanced driving experience
• Excellent value for money

Why Buy From R44 Performance?

R44 Performance supplies premium BMW performance parts trusted by enthusiasts worldwide.

• BMW specialists
• Fitment-verified products
• Fast UK & worldwide shipping
• Expert technical support

Unlock a deeper exhaust note and sharper performance from your BMW with the DCE Parts G22, G23 & G26 M440i OPF/GPF Resonator Delete Midpipe.

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.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.