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BMW

Genuine BMW M8 Copper Exhaust Centre Collar Nut for Catalytic Converter/Centre Joint | OEM 18307597650 | Fits F10 F80 F87 G15 (M2 M3 M4 M6 M550iX 760i M850iX)

Genuine BMW M8 Copper Exhaust Centre Collar Nut for Catalytic Converter/Centre Joint | OEM 18307597650 | Fits F10 F80 F87 G15 (M2 M3 M4 M6 M550iX 760i M850iX)

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OE BMW M8 Copper Flange Nut for Exhaust Joint - Part 18307597650

Authentic BMW M8 copper flange nut designed for the high temperature clamp points on the exhaust system. Ideal for converter flange unions, centre section joins, downpipe to mid-pipe interfaces and general exhaust stud fixings on performance models. This factory part gives a precise fit, consistent torque and long term reliability.

Built from copper for outstanding heat resistance and anti corrosion performance, this OE fastener is the smart choice when fitting new pipes, replacing worn fixings or restoring a factory fresh seal on your BMW exhaust assembly.

Why this OE copper M8 nut is the right choice

  • BMW original equipment for perfect fit on exhaust studs and flanges
  • Copper construction helps resist heat soak and seizing
  • M8 thread size for the specified BMW exhaust connections
  • Restores secure joints and helps prevent leaks or loose joints after heat cycles
  • Trusted in our own workshop and by customers for clean, trouble free installs

Part number

18307597650

Also known as: M8 exhaust flange nut, copper stud nut, converter flange fastener, mid pipe union nut, BMW OE exhaust hardware 18307597650, downpipe to centre section nut, copper collar nut M8.

Ideal uses

  • Reinstalling a centre section or link pipe
  • Replacing rusted or fatigued exhaust fixings
  • Converter flange hardware refresh during maintenance or upgrades
  • Downpipe to mid pipe joint service

Fitting and workshop support

Professional installation available at MJ Modifications in Warwickshire. For a fitting quote or workshop booking, email info@mjmodifications.co.uk.

Compatibility

Suits a wide range of BMW and Rolls Royce applications including popular performance models such as M2, M3, M4, M6, M550i xDrive, 760i and M850i xDrive. Use the detailed platform list below as a guide.

2 Series

  • 2' F87 M2 LCI (10/2016 to 12/2019)

3 Series

  • 3' F80 M3 (04/2012 to 06/2015)
  • 3' F80 M3 LCI (01/2015 to 10/2018)

4 Series

  • 4' F82 M4 (02/2013 to 02/2017)
  • 4' F82 M4 LCI (05/2016 to 12/2019)
  • 4' F83 M4 (06/2013 to 02/2017)
  • 4' F83 M4 LCI (05/2016 to 12/2019)

5 Series

  • 5' F07 GT (09/2008 to 06/2012)
  • 5' F07 GT LCI (08/2012 to 02/2017)
  • 5' F10 (01/2009 to 10/2016)
  • 5' F11 (01/2009 to 06/2013)
  • 5' G30 (07/2018 to 12/2019)

6 Series

  • 6' F06 Gran Coupé (10/2011 to 02/2015)
  • 6' F06 Gran Coupé LCI (09/2014 to 09/2018)
  • 6' F12 (11/2009 to 02/2015)
  • 6' F12 LCI (05/2014 to 05/2018)
  • 6' F13 (03/2010 to 02/2015)
  • 6' F13 LCI (06/2014 to 10/2017)

7 Series

  • 7' F01 (06/2007 to 06/2012)
  • 7' F01 LCI (07/2011 to 05/2015)
  • 7' F02 (07/2007 to 06/2012)
  • 7' F02 LCI (05/2011 to 05/2015)
  • 7' F03 (04/2008 to 05/2012)
  • 7' F03 LCI (01/2012 to 03/2015)
  • 7' F04 Hybrid (10/2008 to 06/2012)
  • 7' G11 LCI (01/2018 to 12/2019)
  • 7' G12 LCI (01/2018 to 12/2019)

8 Series

  • 8' G14 (11/2017 to 12/2019)
  • 8' G15 (10/2017 to 12/2019)
  • 8' G16 Gran Coupé (06/2018 to 12/2019)

Rolls Royce

  • Ghost RR4 (08/2008 to 11/2019)
  • Wraith RR5 (11/2012 to 12/2019)
  • Dawn RR6 (04/2015 to 11/2019)

Compatibility check before dispatch

We will verify fitment before shipping. Add your UK registration or the last 7 characters of your VIN at checkout and we will confirm this OE BMW copper M8 nut 18307597650 suits your vehicle.

Manufactured by

BMW - genuine OE exhaust hardware.

Warranty

Two years manufacturer warranty for UK customers and one year manufacturer warranty for international customers when a VIN is provided at checkout on compatible vehicles.

What our workshop says

We fit these OE copper nuts daily in our own builds and customer cars. They tighten smoothly, hold torque and keep joints secure after repeated heat cycles. A simple upgrade when refreshing any exhaust union.

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