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Case Study: Exhaust Manifold Supply for a courier company in West Africa

Source:Case / Time:2026-09-18

Exhaust Manifold for A courier company in West Africa

A courier company came to us with a exhaust manifold programme for West Africa. The brief was ordinary and unforgiving at the same time: a fixed launch window, a landed cost that had to survive freight and duty, and a part that had to match an existing sample. This case records what was specified, what went wrong in sampling and how the bulk order landed.

The starting point

  • Reorders that did not match the approved sample
  • Documentation that arrived after the container shipped
  • A fitment that looked right on paper and failed on the bench

Exhaust Manifold case study

What was specified

PartExhaust Manifold
ClientA courier company
MarketWest Africa
Volume10,000 pieces across 4 specifications
Base materialMagnesium Alloy
Sampling rounds4
Delivery window8 weeks from PO to ex-factory
ComplianceREACH

How it was resolved

  1. The specification was rebuilt around Magnesium Alloy and the tolerance locked before bulk.
  2. A pre-production sample was approved and kept as the golden reference.
  3. Production ran with in-line inspection and a mid-run photo report.
  4. Cartons were packed to the client's own barcode and ratio specification.
  5. Documentation shipped with the goods instead of after them.

Exhaust Manifold production run

Result

  • 10,000 pieces delivered inside the 8-week window.
  • Unit cost held within 4.5% of the original quotation.
  • Inspection-related rejection stayed under 2.0%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Lock the material standard before sampling. Once the base changes, every downstream approval has to be redone and the calendar slips.

Planning something similar?

Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.

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