JetPrime JP ES 033 Yamaha — SLS / AIS Block-Off Cover for Yamaha YZF-R6 (2003–2026) – JP ES 033 — Ansicht 1 360° — drag me
02 · Data & docs

The facts.

Technical data
ModelJP ES 033
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsYamaha R6 (2003–2022)
InstallationPlug-and-play, no wiring harness modifications required
ReplacesOEM PAIR valve cover, rubber cap and associated hoses
Intended useRace / track use only — not road legal
DescriptionThe whole story

The JP ES 033 blanks the secondary air ports on the R6's head across the model's whole life.

Key Features

  • Yamaha R6 (2003–2022)
  • Machined block-off cover for the PAIR ports
  • Sealed with its own gasket
  • Fully reversible to standard

Twenty Model Years

Yamaha kept the R6's cylinder head arrangement consistent from 2003 until the model left road sale in 2022. One cover fits the entire run.

A Supersport Benchmark

The R6 defined the class for two decades and Yamaha withdrew it rather than detune it for the next emissions standard. That decision says everything about the engine.

What the Plate Does

Seals the galleries that feed fresh air into the exhaust ports. It is the mechanical half of removing the secondary air system.

A Proper Gasket

Supplied with the cover, because the location is hot and improvised sealing fails quickly there. It is not a place to save five euros.

Sixteen Thousand Five Hundred Revs

The redline on 599 cc. Nothing else in the class ever asked to be worked that hard and everything bolted to the engine lives accordingly.

Machined Rather Than Stamped

A cut plate stays flat through heating and cooling. Pressed covers distort and eventually weep at the sealing face.

Emissions Hardware

Its removal takes the motorcycle out of type approval. On an R6 destined for a circuit that is largely academic and it is still worth stating.

Before the Dyno

Air injected after combustion makes the lambda reading meaningless. Any honest mapping work starts with the PAIR system gone.

Nothing Permanent

The original cover refits with its gasket. The head is never modified in the process.

Withdrawn Rather Than Softened

Yamaha chose to stop selling the R6 for road use rather than detune it to meet the next emissions standard. Very few manufacturers make that choice, and it explains why the engine still revs the way it does.

Fitment and Compatibility

  • Yamaha R6 (2003–2022)

Specifications

Model JP ES 033
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits Yamaha R6 (2003–2022)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x block-off plate
FitmentWhich bikes this fits
  • Yamaha R6 (2003–2022)
07 · Support

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08 · Paddock

Before you go.

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