BMW
Genuine BMW M Performance Carbon Fibre Side Skirt Extensions/Attachments (Side Blades) for G80 M3 & G82 M4 (G8X), incl. Competition, 2021+ Pair | OEM 51192473414, 51192473415
Genuine BMW M Performance Carbon Fibre Side Skirt Extensions/Attachments (Side Blades) for G80 M3 & G82 M4 (G8X), incl. Competition, 2021+ Pair | OEM 51192473414, 51192473415
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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Original BMW M Performance Carbon Rocker Extensions for G80 M3 and G82 M4 2021 onward - Pair - PN 51192473414 and 51192473415
Take the side profile of your G8X to the next level with these authentic BMW M Performance carbon rocker extensions. Designed by BMW for the G80 M3 saloon and G82 M4 coupe, they deliver a lower, wider visual stance, sharper side lines and that unmistakable motorsport look while maintaining perfect factory fit and finish. If you want premium side aero that integrates like it left the showroom this is the set to choose.
We run these on our own G8X builds and have installed them for many happy customers across the UK. Feedback is consistently strong on fitment, weave quality and the instant visual impact. Buy once and buy right with genuine M Performance.
Why this upgrade
- Authentic BMW M Performance accessory for G8X chassis - seamless OE integration
- Real carbon fibre with high gloss clear coat for deep gloss and UV resistance
- Aggressive side aero effect that complements front splitters and rear diffuser upgrades
- Lightweight construction and precision moulding for the original side sills
- Matched left and right pieces for a balanced, factory-style finish
- Ideal for road cars and track-focused builds seeking premium carbon side trim
Compatibility
- BMW G80 M3 Saloon 2021 onward
- BMW G80 M3 Competition Saloon 2021 onward
- BMW G82 M4 Coupe 2021 onward
- BMW G82 M4 Competition Coupe 2021 onward
Suitable for owners searching for BMW rocker panel splitters, sill extensions, side spoilers, carbon side trims, G8X side aero kit parts and OEM M Performance side splitters for 2021, 2022, 2023, 2024 and 2025 models.
What you receive
- 1 x left side carbon rocker extension - BMW M Performance
- 1 x right side carbon rocker extension - BMW M Performance
Part numbers
BMW OEM: 51192473414 and 51192473415
Fitment check
We verify compatibility before dispatch. Add your UK registration or the last 7 of your VIN at checkout and we will confirm fit for your specific G80 or G82.
Professional installation
For the best OE result, professional fitting is recommended. MJ Modifications offers in-house installation in Warwickshire. To request a quote or book an appointment, email info@mjmodifications.co.uk.
Manufacturer and warranty
Manufactured by BMW. Genuine M Performance Parts.
Warranty: Two years manufacturer warranty for UK customers and one year for international customers when a VIN is provided on compatible vehicles.
Why choose MJ Modifications
- Trusted UK specialist for original BMW M Performance accessories for G80 and G82
- Proven on our own cars with extensive customer installs and great feedback
- Fast fitment checks, expert advice and optional fitting in Warwickshire
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