JetPrime JP ES 018 A BMW HP4 Race 1000 — Airbox closure plug — view 1
02 · Data & docs

The facts.

Technical data
ModelJP ES 018 A
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsBMW HP4 Race 1000 (2017–2018)
InstallationPlug-and-play, no wiring harness modifications required
DescriptionThe whole story

The JP ES 018 A closes the HP4 Race's airbox where the secondary air hose used to leave it.

Key Features

  • BMW HP4 Race 1000 (2017–2018)
  • Closes the secondary air port in the airbox
  • Machined from solid aluminium
  • O-ring sealed against the airbox wall
  • Needed once the hose has been removed
  • Standard fitting refits at any time

The Hole Nobody Thinks About

Deleting secondary air means taking a hose off the airbox, and that leaves an opening straight into the intake tract. Unfiltered air entering there is worse than the system ever was.

What This Is

A machined plug that seals the port against an O-ring, so the airbox is closed properly rather than covered with tape or a rubber cap that will not stay.

Why Tape Fails

The airbox sees pressure changes on every throttle movement and heat from the engine below it. Anything adhesive lets go eventually, usually without being noticed.

Seven Hundred and Fifty Motorcycles

BMW built the HP4 Race as a carbon-framed, carbon-wheeled machine that was never road legal. It cost as much as a house deposit and every one of them was sold.

A Carbon Frame

Not a carbon panel over an aluminium structure, but a main frame wound from carbon fibre. Nothing else on sale to the public has been built that way before or since.

Two Hundred and Fifteen Horsepower

From a hand-built version of the S1000RR four, with a titanium exhaust and race electronics. It is a World Superbike machine with a serial number.

Machined, Not Moulded

Aluminium turned from solid with the groove cut into it. On a motorcycle built entirely from race components, a rubber bung would look exactly as wrong as it would perform.

Fitted With the Rest

The plug goes in while the airbox is already off for the cylinder head work. Doing it later means taking the tank off a second time for no reason.

Reversible

The original hose and fitting refit whenever the standard arrangement goes back, with nothing consumed and nothing cut.

A Track Machine Already

The HP4 Race was never homologated for a road, so the usual questions about type approval simply do not arise on this one.

Fitment and Compatibility

  • BMW HP4 Race 1000 (2017–2018)

Specifications

Model JP ES 018 A
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits BMW HP4 Race 1000 (2017–2018)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x airbox plug
FitmentWhich bikes this fits
  • BMW HP4 Race 1000 (2017–2018)
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08 · Paddock

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