AIRTEC Centre Undertray - BMW M3 E92
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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.
UK DELIVERY & STOCK INFORMATION
We hold one of the most extensive ranges of performance parts in the UK through our trusted supplier network. Most in-stock items are dispatched the same working day when ordered before 2PM.
If something isn’t currently in stock, it’s usually unavailable anywhere else - but we’ll always do our best to source it quickly and keep you updated.
Keep an eye on the stock status shown on each product - this provides an accurate guide to availability and lead times. On rare occasions, supplier updates may cause small variations in delivery times.
- FAST UK DISPATCH
- MULTIPLE WAREHOUSES
- ORDER SUPPORT
RETURNS & WARRANTY
We always aim to make sure you’re happy with your order, and our team is here to help if there’s ever an issue.
Unused items can be returned within 14 days of delivery for a refund or exchange, provided they’re in original packaging and resellable condition.
Some products may be subject to a restocking or processing fee, and custom or made-to-order items (such as brake lines, custom colours, or special builds) can’t be cancelled or refunded once production begins.
If you’re unsure whether your item is custom, please contact us before ordering.
Most products include a 12-month manufacturer warranty, and we’ll always help guide you through the process if something goes wrong.
For full details, please see our Returns Policy.
- EASY RETURNS
- UK CUSTOMER SERVICE
- Over 10 Years Experience