Scorpion BMW G01 X3 M40i LCI Decat Exhaust Downpipe (2021-2025)

The Scorpion decat exhaust downpipe for the BMW G01 X3 M40i LCI is designed to significantly improve exhaust flow by removing the most restrictive section of the factory system. Developed specifically for MHEV-equipped LCI models, this downpipe targets performance, response, and sound character while maintaining precise, OEM-quality fitment.

With a large 125mm (5") diameter, the downpipe allows exhaust gases to exit the turbocharger with minimal restriction, improving flow consistency and reducing back pressure. The result is sharper throttle response and a more pronounced, purposeful exhaust note that feels freer and more immediate under load. This makes it an ideal upgrade for owners looking to unlock the full potential of the B58 engine.

Manufactured from high-quality stainless steel, the Scorpion decat downpipe offers excellent durability and heat resistance while delivering a 3kg weight saving over the OEM component. Designed to fit seamlessly with either the factory exhaust or Scorpion systems, it provides flexibility for staged upgrades and integrates cleanly into both standard and performance-focused setups.

By purchasing this product, you're agreeing to use it for off-road / race use only due the removal of the OEM catalytic converter. This product is not legal for road use.

Key Features

• Decat exhaust downpipe for BMW X3 M40i LCI

• Removes restrictive factory catalyst for improved exhaust flow

• Large 125mm / 5" pipe diameter

• Improves throttle response and exhaust gas efficiency

• Delivers a stronger, more defined exhaust character

• Approx. 3kg weight saving compared to OEM

• High-quality stainless steel construction

• Designed to fit with OEM or Scorpion exhaust systems

• For-off road use only

Compatibility

• BMW G01 X3 M40i LCI MHEV (2021–2025)

• Fits to OEM or Scorpion exhaust components

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.