MMX BMW G8X Underbody Engine Oil Cooler Guard For G80/G81 M3, G82/G83 M4 & G87 M2

The MMX BMW G8X Underbody Engine Oil Cooler Guard protects one of the most exposed and most expensive components on the G8X platform. The engine oil cooler sits low and forward with almost nothing in front of it, and a single stone or piece of track debris through the core means an oil loss and a recovery truck. This guard removes that risk for a fraction of the cost of the repair.

The Problem It Solves

On the G80 M3, G82 M4 and G87 M2, BMW mounts the auxiliary oil cooler in the lower front aperture where it takes the full force of road debris. The core is thin, unprotected and sits directly in the firing line of anything thrown up on a motorway or picked up off a circuit. Damage is common, and because the failure dumps oil, it usually happens at the worst possible moment.

Airflow Kept, Debris Stopped

Fitting a solid plate would protect the cooler and cook the engine. The MMX guard instead uses an optimised hexagonal grille pattern that maintains the airflow the cooler needs while blocking the debris that damages it. The pattern is sized to stop the stone sizes that actually cause failures without restricting the core.

Made To Survive Underneath A Car

The guard is precision folded from 6061-T6 aluminium and finished in a durable black powder coat, so it resists both impact and the salt and grit thrown at it through a British winter. It fits directly to factory mounting points with all hardware supplied, requiring no cutting or drilling.

Key Features

• Protects the exposed underbody engine oil cooler from stone and debris damage
• Precision folded from 6061-T6 aluminium
• Durable black powder coated finish
• Optimised hexagonal grille maximises airflow to the cooler
• Direct OEM-fit – no cutting or drilling required
• All required mounting hardware supplied
• Ideal for track day and fast road use

Specifications

• Part Number: MMR13-1602
• Material: 6061-T6 aluminium
• Finish: Black powder coat
• Installation: Direct fit, hardware included

Compatibility

• BMW G80 M3 and G81 M3 Touring
• BMW G82 M4 and G83 M4
• BMW G87 M2

Frequently Asked Questions

Does the guard reduce oil cooling?
No. The hexagonal grille is sized to maintain airflow through the core while stopping debris, rather than blanking it off.

Is drilling required to fit it?
No. The guard uses factory mounting locations and is supplied with all the hardware needed.

Is it worth fitting to a road-only car?
Yes. Most oil cooler damage happens on the motorway rather than on track, and the cost of the guard is a small fraction of a cooler replacement.

Why Choose The MMX Guard?

This is a preventative part, and the case for it is simple arithmetic against the cost of a failed cooler, a recovery and the risk to an S58 running without oil pressure. MMX builds it from proper material with a finish that lasts, and R44 Performance supplies it with UK stock and worldwide shipping.

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.