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2014-2019 F80/F82/F83 BMW M3/M4 Carbon Fiber Rear Diffuser - PSM Style, 4-Piece | Rear Valance & Diffuser
2014-2019 F80/F82/F83 BMW M3/M4 Carbon Fiber Rear Diffuser - PSM Style, 4-Piece | Rear Valance & Diffuser — photo 12014-2019 F80/F82/F83 BMW M3/M4 Carbon Fiber Rear Diffuser - PSM Style, 4-Piece | Rear Valance & Diffuser — photo 22014-2019 F80/F82/F83 BMW M3/M4 Carbon Fiber Rear Diffuser - PSM Style, 4-Piece | Rear Valance & Diffuser — photo 32014-2019 F80/F82/F83 BMW M3/M4 Carbon Fiber Rear Diffuser - PSM Style, 4-Piece | Rear Valance & Diffuser — photo 4
☆☆☆☆☆★★★★★ 4.5from the original listing

2014-2019 F80/F82/F83 BMW M3/M4 Carbon Fiber Rear Diffuser - PSM Style, 4-Piece | Rear Valance & Diffuser

$560 (2–9) / $515.20 (10–19) / $504 (20–49) / $464.80 (≥50)
Verification snapshot
✓ Fitment listed for:F80, F82, F83 — confirm year/trim/VIN before ordering
✓ Supplier:Supplier rating 4.5/5 on Alibaba
Material:Carbon Fiber
MOQ:2 pieces
💡 Supplier-direct price above. See how supplier prices compare to US retail →
Minimum order
2 pieces
Supplier
Guangdong Carbonss Tuning Co., Ltd. (profile in Who Makes What — evidence: FactoryPlug product database — cataloged from this supplier's Alibaba listings (2026-09-17, 2026-09-21, 2026-09-22).)
Compatibility
Listed by supplier for: F80, F82, F83 — year, model, trim, engine and VIN still needed before ordering.
Shipping
Quoted by the supplier — ask about DDP vs DAP and delivery time in writing before paying
Added
2026-09-21

This listing mentions: F80 · F82 · F83 — confirm against your exact build.

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! Fitment check: Fitment is never guaranteed from a listing page. Always confirm fitment, year, model, trim, engine, and VIN directly with the supplier contact before you buy.
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Who manufactures this

The part matters — but so does the factory behind it. Here's exactly who manufactures this component.

Guangdong Carbonss Tuning Co., Ltd.

☆☆☆☆☆★★★★★ 4.5
Verification
Supplier rating 4.5/5 on Alibaba
Directory evidence
FactoryPlug product database — cataloged from this supplier's Alibaba listings (2026-09-17, 2026-09-21, 2026-09-22).
✓ Why it made the catalog: this listing cleared our quality bar with a 4.5/5 supplier rating, a profile in our Who Makes What directory (evidence: FactoryPlug product database — cataloged from this supplier's Alibaba listings (2026-09-17, 2026-09-21, 2026-09-22).).
Full supplier profile →

Supply-chain audit

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Minimum order quantity
2 pieces
Material spec
Carbon Fiber
Shipping terms
Contact supplier — ask about DDP vs DAP before you commit
Seller type
Guangdong Carbonss Tuning Co., Ltd. — Unconfirmed (factory vs trading status unverified; directory evidence: FactoryPlug product database — cataloged from this supplier's Alibaba listings (2026-09-17, 2026-09-21, 2026-09-22).)
Transaction history
Contact supplier

Also known as

Also listed and searched as: PSM diffuser, PSM-style diffuser, 4-piece diffuser, rear valance, rear bumper diffuser and four-piece rear diffuser.

Buying guides worth reading

About this part

"PSM Style" = replica naming, not genuine PSM. Fitment per listing "For BMW F80 F82 M3 M4, 2014-2019" — buyer confirms exact chassis/year/VIN with seller. No single all-in-one full-kit listing exists, but this same supplier sells all three pieces, so a same-supplier full kit is achievable in one seller conversation. Verification: product-detail page opened live 2026-09-21. Reusable kit shortlist: popular carbon-aero pieces for the 2021+ BMW M3/M4 (G80/G82/G83), anchored on Guangdong Carbonss Tuning Co., Ltd. ("Kebs") so a buyer gets one conversation and one shipping quote. Core pieces (MHC-style front lip, Euro-type diffuser, OEM-type ducktail spoiler) were already cataloged 2026-09-17 with affiliate links ready; the three entries below are NEW from the live 2026-09-21 storefront read — product-detail URLs captured and affiliate links converted via the logged-in Deep Link Generator on the 2026-09-21 live-browser pass. Kit complete: all six pieces link-ready.

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2014-2019 F80/F82/F83 BMW M3/M4 Carbon Fiber Rear Diffuser - $560 (2–9) / $515.20 (10–19) / $504 (20–49) / $464.80 (≥50)
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