Akrapovic BMW M140i, M240i, 340i & 440i Sports Cat Downpipe (B58 Engine)

The Akrapovic high-flow BMW B58 Gen1 downpipe is constructed using high-quality stainless steel and, once fitted to the Evolution Line exhaust, it creates a complete system from the manifold to the tailpipes that will further enhance the performance figures: both the torque and power outputs. It incorporates a sporty catalytic converter. This optional downpipe produces an enhanced sound that delivers a pure racing emotion and fantastic feedback at high revs, without unwanted drone, making it suitable for everyday use.

When installing the Akrapovič downpipe, remapping the ECU is mandatory in order to prevent potential “check engine light” warning signals.

Downpipe is an optional product to the following evolution systems:

• BMW M140i: Evolution Line (SS) - MTP-BM/SS/3H + E-BM/SS/3 
• BMW M240i: Evolution Line (SS) - MTP-BM/SS/4H + E-BM/SS/3
• BMW 340i /440i: Evolution Line (SS) - ​MTP-BM/SS/2H + E-BM/SS/2​

THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.

Compatible Vehicles:

• BMW    M140i (F20, F21) - OPF/GPF    2018 - 2019
• BMW    M240i (F22, F23) - OPF/GPF    2018 - 2021
• BMW    340i (F30, F31) - OPF/GPF    2018 - 2019
• BMW    440i (F32, F33, F36) - OPF/GPF    2018 - 2020

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.