Scorpion BMW G29 Z4 M40i, G20 M340i, G42 M240i & Toyota GR Supra 3.0 High Flow Sports Cat Downpipe

The Scorpion High Flow Sports Cat Downpipe for the BMW G29 Z4 M40i, G20 M340i, G42 M240i and Toyota GR Supra 3.0 is a premium exhaust upgrade engineered to improve exhaust efficiency while maintaining exceptional build quality and precise fitment. Manufactured in the UK from high-grade stainless steel, this downpipe is designed to integrate seamlessly with both OEM and Scorpion exhaust systems, making it an ideal solution for modern GPF-equipped vehicles.

Key Features

• Designed for BMW and Toyota B58-powered models

• Compatible with GPF-equipped vehicles only

• High flow sports catalytic converter

• Manufactured from premium stainless steel

• Large 125mm / 5" pipe diameter

• Precision-engineered for accurate fitment

• Designed to fit OEM or Scorpion exhaust systems

• Developed and manufactured in the UK

Construction & Weight Comparison

This downpipe is engineered to deliver improved exhaust gas flow while reducing overall system weight compared to the factory component.

Weight Comparison:

• OEM Downpipe: 4.9 kg

• Scorpion Downpipe: 4.6 kg

• Weight Saving: 0.3 kg

The reduction in weight is achieved without compromising structural integrity or long-term durability.

Installation Notes

• Direct replacement design

• Utilises factory mounting points

• Compatible with OEM or Scorpion exhaust systems

• Professional installation is recommended

• ECU recalibration may be required depending on vehicle specification

Vehicle Compatibility

Toyota GR Supra A90 3.0

• Model Years: 2019–2026

• GPF models only

BMW Z4 M40i G29

• Model Years: 2019–2026

BMW M340i G20 xDrive

• Model Years: 2019–2026

BMW M240i G42

• GPF-equipped models

Please ensure your vehicle is GPF-equipped before ordering.

Why Choose Scorpion Exhausts

Scorpion Exhausts is recognised for producing high-quality stainless steel exhaust components with a strong focus on material quality, precision engineering and long-term reliability. Every product is designed and manufactured in the UK to ensure consistent fitment and dependable performance.

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.