Adex G8X MP Style Rear Extensions Dry Carbon Fiber
In stockIn-stock parts ship in 1-3 days
- Genuine dry carbon, never wet-lay
- Fitment tested in house
- Bundle 2+ parts, save up to 12%
Product description
MP-style dry carbon rear extensions that sharpen the rear quarters of your M3 or M4 and add visual width to match M Performance aero. Choose your chassis below — built for both the G80 M3 and G82 M4.
Why owners choose it
- Genuine dry carbon — lightweight, rigid layup with OEM-grade durability
- Chassis-specific fit — select G80 M3 or G82 M4; precision-molded to factory tolerances, direct bolt-on
- Sharper rear profile — cleans up the rear quarter line and adds width
- UV-resistant coating — resists fading and holds its gloss
- Seamless panel gaps — molded to factory tolerances for a clean fit
Direct bolt-on with included hardware. Professional installation recommended.
Fitment. BMW G80 M3, G82 M4.
Materials & Construction
Genuine autoclaved prepreg dry carbon fiber in a deep 2x2 twill weave, cured under heat and pressure so the panel is lighter and stiffer than wet-layup carbon. Finished with a UV-stable clear coat that resists yellowing, over an OEM-grade mould for a factory-line fit.
Shipping & Returns
Ships from Los Angeles, California. In-stock parts typically dispatch in 1-3 business days. Shipping charges apply to all orders and are shown at checkout. We do not offer free shipping.
You have 30 days after receiving your item to request a return. Items must be unused and in their original packaging with proof of purchase. There is no restocking fee. Once a return is approved we email you a return shipping label and instructions. Email info@adexcarbon.com to start a return.
Fitment
Will this fit my car?
G8X platform
Check the confirmed applications below for the body style and variant that fit your car.
Confirmed applications
BMW G80 M3, G82 M4.
Know the difference
Genuine dry carbon vs. wet carbon
Most carbon aero sold online is wet-layup fibreglass with a carbon skin. Here is what separates it from an autoclaved dry carbon panel.
ADEX dry carbon
Wet carbon
Construction
Autoclaved prepreg, vacuum-cured
Hand-laid wet layup
Weave
Aligned 2x2 twill, consistent across panels
Wavy, misaligned weave
Clearcoat
UV-stable, resists yellowing
Gel coat that yellows in the sun
Weight and stiffness
Lighter and stiffer
Heavier, flexes
Fitment
OEM-scanned, direct bolt-on
Gaps, trimming, filler panels
Backing
Fitment guarantee, 30-day returns, ships from Los Angeles
Final sale from an overseas seller
Buy it without the risk.
Most carbon sellers charge you 10-20% to take a part back and make you pay the return shipping on top. We do not do either.
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30 days to return itUnused and in its original packaging, with proof of purchase.
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No restocking feeYou get the full price of the part back, not a percentage of it.
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We send the return labelOnce a return is approved we email you the label and instructions.
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Fitment check before you buySend your model, year and trim and we will confirm the part fits before you order.
(Estimated. In-stock parts ship from Los Angeles.)
Order Placed
Nov 4
Shipped Between
Nov 5–Nov 7
Delivered
Nov 8–Nov 13
In-stock parts leave our Los Angeles shop within 1-3 business days and most US orders arrive inside a week.
Complete the build
More carbon for the G80 M3 / G82 M4 / G83 M4 (G8X)
Adex Carbon
Adex G8X MHC Style Rear Bumper Splitters Dry Carbon Fiber
Options available
$399.99$459.99
Two parts or more and the discount applies automatically5% off at 2 parts, 8% at 3, 10% at 4, 12% at 5. No code needed.
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