YT High Flow Downpipe Three-way Catalytic Heat Shield for Audi S4 S5 B9.5 3.0T Auto Exhaust Mod Parts

$380 (1-4 sets), $340 (5-9), $300 (10+)

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Minimum order: 1 set
Supplier: Changzhou Yaotu International Trade Co., Ltd., Changzhou, 2 yrs, 4.9/5 (profile in Who Makes What — evidence: FactoryPlug product database — cataloged from this supplier's Alibaba listings (2026-09-22).)
Compatibility: Listed by supplier for: B9 — 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: 2026-09-22

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This listing mentions: B9 — confirm against your exact build.

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Who manufactures this

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

Changzhou Yaotu International Trade Co., Ltd., Changzhou, 2 yrs, 4.9/5

★★★★★★★★★★ 4.9

Verification

Supplier rating 4.9/5 on Alibaba

Directory evidence

FactoryPlug product database — cataloged from this supplier's Alibaba listings (2026-09-22).

✓ Why it made the catalog: this listing cleared our quality bar with a 4.9/5 supplier rating, a profile in our Who Makes What directory (evidence: FactoryPlug product database — cataloged from this supplier's Alibaba listings (2026-09-22).).

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Supply-chain audit

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Minimum order quantity: 1 set
Material spec: Contact supplier
Shipping terms: Contact supplier — ask about DDP vs DAP before you commit
Seller type: Changzhou Yaotu International Trade Co., Ltd., Changzhou, 2 yrs, 4.9/5 — Unconfirmed (factory vs trading status unverified; directory evidence: FactoryPlug product database — cataloged from this supplier's Alibaba listings (2026-09-22).)
Transaction history: Contact supplier

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All Alibaba buying guides →

About this part

Chassis codes: B9
Minimum order: 1 set
Supplier rating: 4.9/5

Affiliate_links extra_batch_19.json (2026-09-10). SUS304 high-flow downpipe with three-way catalyst & heat shield for Audi S4/S5 B9.5 3.0T; EU compliant Downpipe; silver, SUS304, 1.5mm; MOQ 1 set Buyer confirms fitment (year/model/VIN) with the seller before paying.

Supplier rating checked before listing
Price shown is the supplier range — final price depends on options and shipping
Questions about fitment? Confirm year, model, trim and VIN directly with the supplier contact

Aftermarket style, inspired by the classic design. This is a style/replica part — not affiliated with or endorsed by the original brand.