Name: BMW 4 Series B47 Decat Downpipe (F3X) (EURO 6)
Brand: Groovy Stance
SKU: B47
Price: 155.00 GBP
Availability: InStock

1/7

BMW 4 Series B47 Decat Downpipe (F3X) (EURO 6)

£155.00

BMW B47 / N47N Euro 6 Stainless Steel Decat Downpipe

UK Manufactured | 304 Stainless Steel | 2.5" Diameter | Direct Bolt-On Fitment

Handcrafted in the UK by our experienced team, our BMW B47 / N47N Euro 6 decat downpipe is designed to improve exhaust flow and support increased performance in compatible BMW diesel vehicles.

Manufactured from high-quality 304-grade stainless steel, the downpipe features a 2.5-inch diameter construction and is designed to replace the factory catalytic converter (CAT) and Diesel Particulate Filter (DPF) for dedicated off-road and motorsport applications.

Designed as a direct bolt-on replacement, the downpipe retains the factory exhaust outlet connection and original sensor locations, allowing it to connect directly to the standard exhaust system.

Key Features

Handmade in the UK – Custom manufactured by our experienced team.
304 Stainless Steel Construction – High-quality material for strength, durability and corrosion resistance.
2.5" Diameter Pipework – Designed to improve exhaust gas flow.
Improved Exhaust Flow – Reduced exhaust restriction to support performance gains in suitable motorsport applications.
CAT & DPF Delete – Replaces the factory catalytic converter and Diesel Particulate Filter.
Direct Bolt-On Installation – Designed to connect to the original exhaust system.
Factory Sensor Compatibility – Retains the original sensor mounting locations for compatible non-AdBlue vehicles.
Standard Exhaust Compatibility – No aftermarket exhaust system required.

Vehicle Compatibility

Designed for compatible BMW models equipped with the B47 / N47N Euro 6 diesel engines, specifically vehicles without an AdBlue system.

The following BMW models are listed as compatible. Please check your specific engine, emissions system and exhaust configuration before ordering.

BMW 1 Series

F20 LCI 5-Door Hatchback (05/2014 – 06/2019)
F21 LCI 3-Door Hatchback (05/2014 – 06/2019)

BMW 2 Series

F22 Coupé (08/2013 – 06/2017)
F22 LCI Coupé (09/2016 – 12/2019)
F23 Convertible (10/2014 – 06/2017)
F23 LCI Convertible (09/2016 – 12/2019)

BMW 3 Series

F30 LCI Saloon (10/2014 – 10/2018)
F31 LCI Touring (09/2014 – 06/2019)
F34 LCI Gran Turismo (09/2015 – 01/2020)

BMW 4 Series

F32 Coupé (05/2014 – 02/2017)
F32 LCI Coupé (05/2016 – 12/2019)
F33 Convertible (10/2014 – 02/2017)
F33 LCI Convertible (05/2016 – 12/2019)
F36 Gran Coupé (05/2014 – 02/2017)
F36 LCI Gran Coupé (05/2016 – 12/2019)

Important: This downpipe is designed for non-AdBlue vehicles only. Vehicles equipped with AdBlue/SCR emissions systems may use a different rear sensor configuration and are not covered by this fitment specification.

Unsure about compatibility? Contact us before ordering with your vehicle's model, year, engine specification and AdBlue configuration, and we'll be happy to help confirm fitment.

Installation Information

This downpipe is designed as a direct bolt-on replacement, retaining the factory exhaust outlet and original sensor mounting locations.

Please note the following before installation:

Turbo-to-Downpipe Clamp – The original turbo clamp can become heavily corroded over time and may break during removal. Replacement clamps are available separately from our website.
AdBlue Compatibility – This product is intended for non-AdBlue vehicles only. Please confirm your vehicle's emissions configuration before purchasing.
ECU Software Requirements – ECU software modifications may be required following installation to prevent engine management warning lights and running issues. Any modifications must be appropriate for the vehicle's intended off-road or motorsport use and comply with applicable regulations.

Professional installation is recommended.

IMPORTANT – OFF-ROAD & MOTORSPORT USE ONLY

All Groovy Stance decat downpipes are manufactured and sold strictly for off-road, motorsport and competition use only. They are not approved for use on public roads.

This product is designed to replace factory emissions-control equipment, including the Diesel Particulate Filter (DPF) and/or catalytic converter, where applicable.

Removing or modifying emissions-control equipment can make a vehicle non-compliant with UK road-vehicle emissions regulations. A vehicle with required emissions-control equipment removed will fail its UK MOT inspection. Similar restrictions may apply in other countries.

By purchasing and/or installing this product, the customer acknowledges that:

This product is supplied exclusively for off-road, motorsport or competition applications.
The customer is responsible for ensuring their vehicle complies with all applicable laws and regulations.
The vehicle must not be operated on public roads in a configuration that breaches emissions or roadworthiness legislation.
Groovy Stance is not responsible for MOT or inspection failures, fines, penalties or other consequences arising from unlawful installation or use, to the extent permitted by law.
The vehicle must be returned to a road-legal, emissions-compliant configuration before being used on public roads or presented for a roadworthiness inspection.

Purchasing this product confirms your understanding that it is an off-road/motorsport component and is not supplied as a road-legal replacement for factory emissions-control equipment.

All of our downpipes are manufactured to order here in the UK. We aim to manufacture and dispatch orders within 1 working day, although additional time may be required during public holidays, promotional events or periods of high demand.

All orders are shipped using a 24-hour or 48-hour delivery service, depending on the option selected at checkout.

We offer worldwide shipping, with delivery costs calculated at checkout. If your country isn't listed, please contact us for a bespoke shipping quotation.

For an accurate lead time before ordering, please get in touch.