BMW F80 M3/F82 M4 - Large Bore Downpipe with GPF/OPF & Catalyst Delete

Milltek Sport Large-Bore Downpipes are perfect when looking to improve both performance and sound. These downpipes are fabricated with a larger diameter than standard OEM parts, meaning that there is significantly more space for more gas to exit the engine and pass through, increasing efficiency. Used with our Catalyst Bypass Pipe, you can expect significant power-gain without any restriction on gas-flow made by a catalyst.

All our performance exhaust systems are designed with you in mind, and we cater to an ever-expanding range of vehicles. We believe in continuous evolution, and our research & development team work throughout the year to deliver the most in demand solutions to all your performance exhaust requirements. All of our products are made in the UK and distributed to more than 90 countries worldwide, making Milltek Sport one of the most accessible performance aftermarket brands on the market.

- This product is intended for motorsport use only and requires Stage 2 ECU Remap.

This product is intended for motorsport use only, Use is limited to racing, private property, show purposes or export only. It is not permitted on public roads and has no approval under the German Road Traffic Licensing Regulations (StVZO). Depending on vehicle and country, approval or inspection may be required. The purchaser is solely responsible for complying with the the applicable laws and regulations in their country.