Genuine BMW M2 G87 2023-On OEM Carbon Fibre (Fiber) Rear Diffuser Valance/Bumper Insert | M Performance Rear Undertray Splitter Trim/Rear Lower Garnish | PN 51125A46B51

OEM Carbon Fibre Rear Valance Upgrade for M2 G87

Elevate the rear end of your latest-generation M2 with this authentic factory carbon fibre lower bumper insert. This premium rear valance delivers a motorsport-inspired look, razor-sharp fitment and a high-end finish that transforms the stance of the S58-powered 2 Series coupe. Part Number: 51125A46B51.

Crafted as an original equipment accessory, this carbon fibre diffuser integrates cleanly with the existing rear bumper and exhaust surrounds for a seamless, bolt-on aesthetic upgrade. We have installed this upgrade on customer cars and the feedback has been consistently excellent for fit, alignment and finish.

• Authentic OEM carbon fibre construction finished to factory standards
• Direct-fit rear bumper insert with precise panel gaps and smooth integration
• Aggressive, track-inspired styling that enhances the rear profile
• Ideal for a cohesive carbon body kit theme or as a standalone rear-end refresh
• Designed for the latest M2 platform for 2023 onwards

Search-Friendly Fitment Details

Compatible with: M2 G87, S58, 2023-onwards. Also referred to as a rear diffuser insert, carbon fibre rear undertray, lower rear splitter, rear aero valance, rear bumper carbon trim and rear lower garnish for M2 G87.

Item reference in the official diagram: Number 16.

Why enthusiasts choose this OEM rear diffuser

• Factory-quality materials for a premium look and feel
• Confidence-inspiring fit on the M2 G87 platform
• Transforms the rear stance with purposeful aero styling
• Pairs beautifully with other carbon fibre exterior upgrades

Compatibility Check

We verify fitment before dispatch to make sure you receive the correct part. Provide your UK registration or the last 7 of your VIN at checkout for a quick compatibility check.

Professional Installation

Want it fitted perfectly first time? Book professional installation with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Part Number

51125A46B51

Manufactured by

Original factory performance accessory. Genuine OEM quality.

Warranty

UK customers: two-year manufacturer warranty. International customers: one-year manufacturer warranty when a valid VIN is provided at checkout on compatible vehicles.

Common Search Terms

M2 G87 carbon fibre rear valance, OEM rear diffuser insert M2, factory carbon rear bumper trim, M2 2023 rear lower diffuser, S58 carbon body kit piece, M2 G87 rear aero upgrade, rear undertray carbon M2, rear splitter M2 G87, carbon rear garnish for M2.