BMW S63 F90 M5 & M8 Pre-LCI Decat Downpipes Ceramic Coated (2018-2020)

Unlock the full potential of your S63-powered BMW S63 F90 M5 & M8 Pre-LCI with SLN Performance's Ceramic Coated Decat Downpipes. These catless downpipes remove the restrictive factory catalytic converters to free up exhaust flow, sharpen turbo response and deliver a deeper, harder-hitting soundtrack from your twin-turbo V8.

Each downpipe is crafted from premium stainless steel and finished in a high-temperature ceramic coating that controls underbonnet heat and improves long-term durability.

Features

• Full decat design for maximum exhaust flow and power
• Ceramic coated for thermal efficiency and durability
• Sharper turbo response and reduced lag
• Deeper, more aggressive V8 exhaust tone
• Premium stainless steel, direct OEM fitment

Compatible Vehicles

• BMW F90 M5 & M5 Competition Pre-LCI (2018–2020)
• BMW F91 M8 Convertible, F92 M8 Coupe & F93 M8 Gran Coupe Pre-LCI (2019–2020)

An ECU tune will be required to fit these downpipes. Please work with your tuner to ensure the correct ECU calibrations are carried out.

The use of de-cats, sports cats and the removal of OPF readings is for off road / motorsport use only and may prevent your vehicle from passing an MOT test. Only EC type-approved components are legal and fit for road use.

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.