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So the 409L stainless steel body gives it good corrosion resistnce, and teh fiber glass insulation helps knock down low-frequency noise—this is actually what most buyers care about for daily driving comfort, not just peak decibel reduction.
We've found it works best for shops doing routine replacements on Jianghuai J5s, where the straight-pipe resistive design keeps backpressure predictable without choking the engine, though it's not ideal for high-performance builds or diesel retrofits where you'd want a different flow pattern.
Custom labeling is pretty straightforward on our end—you can spec your own box art or batch codes, and we'll match the OEM 1:1 dimensions exactly, so it bolts right in without modification (usually 4-6 weeks for first run depending on volume).
MOQ is just one set for samples, but once you're past 50 units or so, lead time drops to about 20 days, and we'll include a COA with each shipment so you've got traceability for your records.
The 1-year or 50,000-km matrial defects, but what it doesn't cover is damage from improper insallation or aftermarket mods—that's pretty standard across the board anyway.
Most clients go with the 40×40×8 cm size because it fits factory hangers perfectly, but if you need a different diameter or inlet configuration, just send us a drawing and we'll quote the tooling cost.
Whichever comes first — 1 year from purchase or 50,000 km of use. We'll cover defects in material or workmanship within that period.
MOQ is just 1 set, so you can order exactly what you need for one vehicle. No bulk requirements.
It's built to OEM 1:1 standards and the HS code is 8708920000. We can provide a material test report for the 409L stainless steel upon request.
Typically 7–15 days for a single set, depending on current stock. We'll confirm exact timing after you place the order.
Each unit is wrapped in protective foam and packed in a sturdy carton. The fiber glass insulation and cloth are sealed to stay dry during transit.
