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The AIRTEC Centre Undertray is a must have when increasing the cars performance.

The original centre under tray on these cars is notoriously weak due to its fibre material construction and as a result is prone to failure over time. AIRTEC's solution is a direct replacement under tray made in aluminium that reuses all of the original mounting points to ensure a perfect and secure fitment.

Finished in a high-quality black powder coat finish, the under tray offers improved strength and durability, and is supplied with all fixtures and fittings, including installation instructions. 

What does an under tray do? - The under tray has three main purposes: to protect the underside of the vehicle from foreign objects flicking up and causing damage or accelerated wear. Secondly, to improve aerodynamics by creating a low pressure area as air accelerates past its smooth surface. This reduces drag, which works towards improving grip, handling as well as fuel efficiency.

Lastly, on performance models, the under tray often provides increased cooling by either venting cold air to, or extracting warm air from the engine bay. Therefore improving the strength, design, size and cooling effect can offer fantastic benefits.  

This Centre Undertray makes up part of BMW E9x M3 cooling package, which includes: 

  • AIRTEC Oil Cooler Kit
  • AIRTEC Power Steering Cooler Kit
  • AIRTEC Radiator Upgrade
  • AIRTEC DCT Cooler Kit

Features:

  • Direct replacement for original E9x M3 under tray – fits both DCT or manual
  • Made from high-quality aluminium for increased strength
  • Uses all original mounting points – no cutting or drilling required
  • Comes in a durable black powder coat finish
  • Supplied with all fixtures and fittings
  • Installation instructions included

Fitment:

  • Replaces BMW part number: 51757898849 (fits both DCT & manual)

note: check all connections at regular intervals, especially during the first few miles after installation, to inspect for leaks.