Wagner Tuning BMW N57 Diesel Catless Downpipe (Decat) SS304 70mm 325d 330d 525d 530d 730d 740d X3/X4/X5/X6 30d 40d E90 F30 F10 F01 E70 E71 Replaces OEM 18308511143 1:1 OEM Fit

Wagner N57 Race Down Pipe for BMW 3.0d - Direct OE-Replacement Front Pipe

Release genuine diesel performance from your BMW 3.0d with Wagner’s high flow front section for the N57 platform. Crafted from SS304 stainless steel with a 70 mm bore, this turbo outlet pipe replaces the restrictive factory front catalyst assembly to cut drive pressure, sharpen turbo response and boost mid-range pull. It is a precise 1:1 OE geometry replacement for BMW part number 18308511143, delivering a true plug-in fit using the original mounting points and hardware. Ideal for track days, off-road use and motorsport builds where maximum flow and reliability matter.

Why enthusiasts choose this N57 performance front pipe

• Noticeably stronger torque and quicker spool thanks to reduced exhaust resistance
• Lower thermal stress at the turbine inlet to support sustained performance
• Stainless steel SS304 construction for durability and corrosion resistance
• Direct-fit OE replacement design for a clean, bolt-on installation

Key product details

• Material - SS304 stainless steel
• Tubing diameter - 70 mm for improved gas flow
• Fitment - 1:1 OE replacement, utilises factory mounting locations
• Replaces OE reference - BMW 18308511143
• Wagner part number - 500001020

Vehicle compatibility - BMW N57 3.0d

Suitable for the following BMW diesel models running the N57 engine:

• 3 Series E90, E91, E92, E93 - 325d, 330d xDrive - 2007 to 2013 - 180 kW
• 3 Series F30, F31, F34 GT - 330d xDrive - 2011 to 2016 - 190 kW
• 5 Series F10, F11, F07 GT - 525d, 530d xDrive - 2010 to 2011 - 150 to 190 kW
• 7 Series F01, F02 - 730d, 740d xDrive - 2007 to 2012 - 180 to 230 kW
• 7 Series F01, F02 LCI - 730d xDrive - 2011 to 2015 - 190 kW
• X3 F25 - 30d xDrive - 2009 to 2016 - 190 kW
• X4 F26 - 30d xDrive - 2013 to 2016 - 190 kW
• X5 E70 LCI - 30d xDrive, 40d xDrive - 2009 to 2013 - 180 to 225 kW
• X6 E71 - 30d xDrive, 40d xDrive - 2009 to 2014 - 180 to 225 kW

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Real results you can feel

We run this Wagner front pipe on our own builds and have installed it for many customers who wanted stronger mid-range shove, faster pick-up and that clean OE-style fit. Feedback has been consistently positive on quality, fitment and the performance uplift expected from a free-flowing front section.

Professional fitting

For hassle-free installation, book fitting with MJ Modifications in Warwickshire. Request a tailored quote and availability at info@mjmodifications.co.uk.

Compatibility check

To confirm suitability before dispatch, add your UK registration or the last 7 characters of your VIN at checkout. We will verify the correct N57 front pipe for your vehicle.

Brand and warranty

Manufacturer - Wagner
Warranty - 2 years manufacturer warranty

Important legal notes

For off-road or track use only. Engine management recalibration may be required to prevent warning lights. Removal or alteration of emissions control equipment is not legal for use on public roads.