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Adex G8X Dry Carbon Rear Diffuser Trim Piece

Adex G8X Dry Carbon Rear Diffuser Trim Piece

$517.49 $449.99 You save $67.50
In stock
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

A dry carbon rear diffuser trim piece that adds carbon detail and depth to the factory diffuser area of your G80 M3 or G82 M4.

Why owners choose it

  • Genuine dry carbon — rigid layup that holds up to daily and track use
  • Chassis-specific fit — integrates with the factory diffuser geometry; direct bolt-on
  • Adds visual depth — sharpens the rear without a full diffuser swap
  • UV-stabilized resin — keeps the matte weave looking fresh
  • Factory-quality look — cohesive with OEM and aftermarket aero

Direct bolt-on. Professional installation recommended.

Applications

BMW G80 M3, G82 M4. Also fits BMW G83 M4 Convertible.

Fitment. BMW G80 M3, G82 M4. Also fits BMW G83 M4 Convertible.

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. Also fits BMW G83 M4 Convertible.
Check my fitment
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.

  • 30 days to return itUnused and in its original packaging, with proof of purchase.
  • No restocking feeYou get the full price of the part back, not a percentage of it.
  • We send the return labelOnce a return is approved we email you the label and instructions.
  • Fitment check before you buySend your model, year and trim and we will confirm the part fits before you order.
Ask about fitment

(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)

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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.
Build a kit
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