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Stainless Steel Muffler Specification Example for Courier Fleets: Racing Spec

Source:Cross Section Otr Tire / Time:2026-09-18

Stainless Steel Muffler Specification Example for Courier Fleets: Racing Spec

This is a worked specification for stainless steel muffler in a racing spec programme. It is the document we would send a buyer who asks what exactly they are getting: the material, the dimensions that are actually controlled, the finish, and the checks that happen before anything is packed.

The racing spec version exists because the duty cycle on courier fleets is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually a fitment that looked right on paper and failed on the bench.

Stainless Steel Muffler

Example specification

ItemStainless Steel Muffler
ApplicationCourier Fleets
VersionRacing Spec
Base materialCeramic Composite
Controlled dimensions6 key dimensions, recorded per lot
Tolerance band±0.5 mm
Finishanodised
MOQ3,000 pieces per specification
Sampling14 working days, 3 days per revision
ComplianceISO/TS 16949

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — Ceramic Composite, in this example.
  3. List the dimensions that are actually controlled and the tolerance on each.
  4. Name the finish and what it has to survive.
  5. State the inspection level and who pays when a lot fails.

Stainless Steel Muffler example

Processes involved

  • heat treatment
  • anodising
  • electroplating
  • injection moulding
  • die casting
  • rubber vulcanisation

Where this example applies

Programmes that run racing spec most often specify this build for courier fleets. Related applications include construction equipment, fleet maintenance, dealership service, camper conversions, light trucks.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 4.0 sampling on the finished lot.
  • Finish inspection under agreed lighting.
  • Carton drop test on the first lot of a new packing specification.

Questions buyers ask

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 3000 pieces per line.

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the ISO/TS 16949-compliant build instead of a fresh interpretation.

Can you match an existing sample?

Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.

How is packing specified?

Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.

Share a sample or a drawing and we will quote against a written specification, not against a photograph.

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