⟲ 360° — drag meThe facts.
| 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 |
| Replaces | OEM PAIR valve cover, rubber cap and associated hoses |
| Intended use | Race / 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Withdrawn Rather Than Softened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)
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