Silencer Box for Subaru Forester: Cast Iron
This silencer box for the Subaru Forester is specified around cast iron, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is warranty claims traced back to a single lot, or warranty claims traced back to a single lot. Both are specification problems, and both are preventable.

Specification
| Product | Silencer Box |
|---|---|
| Vehicle application | Subaru Forester |
| Material / finish | Cast Iron |
| Typical use | Wet Weather Riding |
| MOQ | 500 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 20-30 days after approval |
| Compliance | ISO 9001 |
| Packing | 20 pieces per inner box, 500 per carton |
Material options
- Ceramic Composite — used when the finish has to hold a coating
- Sintered Metal — used when the finish has to hold a coating
- Bronze — the cost-effective default for volume programmes
- Reinforced Nylon — selected when the part is exposed to weather and road salt
- ABS Plastic — selected when the part is exposed to weather and road salt

Processes available
- shot blasting
- CNC machining
- heat treatment
- surface grinding
- gravity casting
- powder coating
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Where it is used
The specification above is the one most often ordered for wet weather riding. Related applications include ride-hailing fleets, construction sites, long-distance touring, security patrols, rental fleets.
Quality and packing
- In-line inspection with AQL 2.5 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
How long does sampling take?
Samples leave the factory in 7 working days, and each revision round adds about 3 days once you have seen the first piece.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the ISO 9001-compliant build instead of a fresh interpretation.
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
What testing is included?
Standard lots ship with dimensional and hardness reports. ISO 9001 documentation is issued with the shipment when your market requires it.
Ask for the current catalogue and the specification sheet for this line.







