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Engine Performance Additive Specification Example for Aftermarket Retail: Touring Version

Source:Intake Manifold / Time:2026-09-18

Engine Performance Additive Specification Example for Aftermarket Retail: Touring Version

This is a worked specification for engine performance additive in a touring version 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 touring version version exists because the duty cycle on aftermarket retail is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually warranty claims traced back to a single lot.

Engine Performance Additive

Example specification

ItemEngine Performance Additive
ApplicationAftermarket Retail
VersionTouring Version
Base materialEPDM Rubber
Controlled dimensions6 key dimensions, recorded per lot
Tolerance band±0.1 mm
Finishanodised
MOQ3,000 pieces per specification
Sampling14 working days, 3 days per revision
ComplianceCCC

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — EPDM Rubber, 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.

Engine Performance Additive example

Processes involved

  • injection moulding
  • robot welding
  • heat treatment
  • ultrasonic cleaning
  • precision stamping
  • shot blasting

Where this example applies

Programmes that run touring version most often specify this build for aftermarket retail. Related applications include delivery vans, city buses, dealership service, racing teams, passenger cars.

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 CCC-compliant build instead of a fresh interpretation.

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.

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.

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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