Milltek OPF Delete Midpipe - BMW F91/F92/F93 M8 Coupe, Cabrio, Gran Coupe

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.

For racing, track and off-road use only. Not for road use without appropriate approvals.

The Milltek Sport GPF/OPF Bypass exhaust system is designed for the BMW 8 Series M8 and M8 Competition (Coupe, Cabriolet & Gran Coupe) models with a factory-fitted OPF/GPF particulate filter and the powerful 4.4-liter twin turbo V8 engine (S63) . This bypass solution bypasses the flow resistance caused by the particulate filter, freeing up the exhaust gas flow and sound for optimal performance.

The GPF/OPF Bypass system does not completely remove the original particulate filter, but bypasses the flow-restricting section of it, allowing the engine's sound and response to open up more naturally and aggressively.

Freer and more powerful V8 sound

Milltek has developed this exhaust system to support the character of the S63 engine:

• Open and deep V8 sound at idle

• Powerful and dynamic sound during acceleration

• Sporty yet controlled sound even at high revs

• No unnecessary resonance or unpleasant drone during normal driving

The sound is clearly sportier and more intense than the original system, but still balanced and usable in normal traffic.

Improved flow and driveability

The GPF/OPF Bypass solution offers:

• For exhaust gases with lower back pressure after the particulate filter

• Improved throttle response and accelerator pedal responsiveness

• Increase flow at high loads

• Supports the engine's natural operating range without completely eliminating the functionality of the original filter

This flow improvement can also serve as an excellent basis for software updates and other tuning components.

Easy bolt-on installation

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

• to work seamlessly with the F91/F92 chassis, powertrain and drive control systems

• for installation without structural changes or welding

OEM-level fit and finish ensure a clean and unobtrusive finish.

304L Aircraft Grade Stainless Steel

The system is made of top quality 304L grade stainless steel , which offers:

• excellent corrosion and heat resistance

• Longevity even in intensive use

• flow-optimized structural model

• carefully finished TIG welds

The material and workmanship meet the requirements of Milltek's premium performance products.

Fit

• BMW M8 Coupe (F92)

• BMW M8 Competition Coupe (F92)

• BMW M8 Convertible (F91)

• BMW M8 Competition Convertible (F91)

• BMW M8 Gran Coupe (F93)

Engine: 4.4 Twin Turbo V8 (S63)
Only for OPF/GPF equipped cars
Model years 2020–2025