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Case Study: Exhaust Manifold Supply for a ride-hailing operator in South Asia

Source:Case / Time:2026-09-18

Exhaust Manifold for A ride-hailing operator in South Asia

A ride-hailing operator came to us with a exhaust manifold programme for South Asia. 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

  • A supplier who changed material without saying so
  • A specification nobody had written down
  • Documentation that arrived after the container shipped

Exhaust Manifold case study

What was specified

PartExhaust Manifold
ClientA ride-hailing operator
MarketSouth Asia
Volume20,000 pieces across 2 specifications
Base materialAnodised Aluminium
Sampling rounds4
Delivery window6 weeks from PO to ex-factory
ComplianceSAE J431

How it was resolved

  1. The specification was rebuilt around Anodised Aluminium 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

  • 20,000 pieces delivered inside the 6-week window.
  • Unit cost held within 3.0% of the original quotation.
  • Inspection-related rejection stayed under 0.5%.
  • 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?

Tell us the model, the fitment and the quantity and we will hold a production slot for you.

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