Milltek Cat Back Exhaust - BMW G42 M240i xDrive OPF 2022-2025

QT Parts is a Finnish online store.

Our warehouse is located in Nokia, Finland.

You can collect your order directly from us if needed. Simply select “Pickup” at checkout.

Pay securely with multiple payment methods, including invoice and installment plans through Klarna.

The delivery time for products in stock is 1-5 business days. We ship worldwide.

If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch. International orders may be subject to VAT, import duties, and customs fees upon arrival in the destination country.

Terms for product returns:

• You must return the ordered products within 14 days of receiving
• The products must be unused and without damages
• Commission fee for handling returns is 21,90€
• For product returns, the customer is in charge of the return costs. Only door to door service (Express)
• Shipping costs are not refunded

For international orders sales are final and non-refundable. Once an order is placed, it cannot be canceled or returned. By placing an order, you acknowledge and agree to these terms.

Return address: QT Parts, Vasarakatu 8B, 37150 Nokia, Finland.

Pre order / made-to-order products

If the product you have ordered is a pre order or made-to-order item, it is not subject to the 14-day right of withdrawal or return under consumer protection laws, as the product is manufactured or sourced specifically based on the customer’s individual order.

If you wish to cancel your order before receiving the product, we will refund 50% of the total order amount.

This condition applies to the following product categories:

• Suspension
• Engine Tuning
• Engine Parts
• Exhaust Systems
• Fueling
• Turbochargers/superchargers
• Drivetrain
• ECE-approved Downpipes

All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.

In the event of such a defect, the standard liability for defects as provided by consumer protection legislation shall apply.

The Milltek Sport Cat Back Exhaust System is designed for the BMW G42 M240i xDrive. The factory-fitted exhaust system significantly reduces engine noise, and Milltek's Cat Back solution brings out the character of the B58 in a controlled and high-quality way.

Note! Cat back exhaust, this exhaust replaces the OPF. Installed after the downpipe.

*The product is not ECE approved.

Balanced and sporty B58 soundscape

Milltek has tuned this system specifically for OPF/GPF models:

• Deeper and fuller sound at idle

• Clearer and more dynamic sound during acceleration

• Controlled and pleasant volume at cruising speeds

• No annoying drone in your daily driving

The sound profile highlights the strengths of the B58 engine while maintaining premium driving comfort.

Improved flow and ride feel

Milltek Cat Back System:

• reduces exhaust back pressure after the particulate filter

• supports engine's sensitive throttle response

• Improves the overall driving experience without compromise

The system works seamlessly with the car's original driving settings and xDrive powertrain.

Direct bolt-on installation

The exhaust system is designed:

• to fit directly into the car's original mounting points

• compatible with the xDrive system

• for installation without welding or permanent changes

OEM-level fit and finish ensure a discreet and high-quality finish.

304L Aircraft Grade Stainless Steel

The entire system is made of high-quality 304L grade stainless steel, which offers:

• excellent corrosion and heat resistance

• long service life

• flow-optimized structure

• carefully finished TIG welds

The choice of materials corresponds to Milltek's premium standard.

Fit

• BMW M240i xDrive Coupe (G42)

Engine: 3.0 Turbo (B58)
OPF/GPF equipped models only
Model years 2022–2025