JetPrime JP ES 660 Aprilia — SLS/AIS Block-Off Plate for Aprilia RS 660 (2020-2026) – JP ES 660 — Ansicht 1 360° — drag me
02 · Data & docs

The facts.

Technical data
ModelJP ES 660
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsAprilia RS 660 (2020–2026)
InstallationPlug-and-play, no wiring harness modifications required
FitmentAprilia RS 660 (2020-2026)
Intended UseTrack use only — not road legal
DescriptionThe whole story

The JP ES 660 blanks the RS 660's secondary air port with a plate turned from solid aluminium.

Key Features

  • Aprilia RS 660 (2020–2026)
  • Blanks the secondary air port in the head
  • Machined from solid aluminium
  • O-ring sealed, no jointing compound
  • Original fastener positions
  • Standard housing refits at any time

What Bolts to the Head

A reed housing fed by a hose from the airbox, admitting air whenever pressure in the exhaust port drops. It is the half that actually lets the air in.

Reeds Do Not Last Forever

Heat and repetition eventually split them. Once one goes, exhaust gas travels back up the hose and coats everything between the head and the filter.

Milled From Solid

One piece with an O-ring in a turned groove. There is nothing inside to age and nothing to inspect at a service for the life of the engine.

A Hundred Horsepower, 183 Kilograms

The RS 660 is quick because it is light. On a tight circuit that produces lap times a considerably more powerful machine would not deliver.

A Wind Tunnel Fairing

The double skin moves hot air away from the rider and adds downforce at speed. Aprilia designed it properly rather than styling it.

Before Any Lambda Work

Air entering the exhaust after combustion shifts what a wideband sensor reads, and every fuelling decision taken afterwards inherits the shift.

Original Fasteners

Aprilia's own bolt positions and torque figures. Nothing is drilled and no thread in the head is touched.

Not the Solenoid

The controller watches that circuit independently of what is bolted to the head. It needs the electrical eliminator.

Homologation

The system belongs to the bike's approval and removing it ends road legality in Europe.

Reversible

The standard housing refits with its own fasteners and no new seals.

A One-Make Championship

Aprilia supports dedicated RS 660 series in several countries, which keeps a supply of well-prepared bikes in circulation and means every preparation part for the model is thoroughly proven. Grids of identical machines produce racing decided by riders rather than by budgets.

Fitment and Compatibility

  • Aprilia RS 660 (2020–2026)

Specifications

Model JP ES 660
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits Aprilia RS 660 (2020–2026)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x block-off plate
FitmentWhich bikes this fits
  • Aprilia RS 660 (2020–2026)
07 · Support

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08 · Paddock

Before you go.

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