JetPrime JP ES 028 Suzuki — SLS/AIS Block-Off Plate — view 1 360° — drag me
02 · Data & docs

The facts.

Technical data
ModelJP ES 028
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsSuzuki GSX-S1000 (2016–2026)
InstallationPlug-and-play, no wiring harness modifications required
FitmentSuzuki GSX-S1000 (2016–2026) / Suzuki GSX-S1000GT (2022–2026) / Suzuki GSX-S1000GX (2024–2026) / Suzuki GSX-S750 (2017–2021) / Suzuki GSX-S950 (2022–2026) / Suzuki GSX-S1000S Katana (2019–2026)
Road approvalNone — closed-circuit and race use only
DescriptionThe whole story

The JP ES 028 closes the GSX-S1000's PAIR ports with a machined blank in place of the reed housing.

Key Features

  • Suzuki GSX-S1000 (2016–2026)
  • Blanks the PAIR ports in the cylinder head
  • Machined from solid aluminium
  • Sealed with an O-ring, no gasket cement
  • Uses the original fastener positions
  • Fully reversible to standard

What Sits on the Head

A plastic reed box with a hose to the airbox. It is the mechanical half of the secondary air system and it is the half that actually admits the air.

Heat and Plastic

The housing sits directly on the cylinder head and lives at head temperature. Ten years of that leaves the reeds brittle and the sealing face uneven.

Milled From Solid

One piece of aluminium with an O-ring groove turned into the sealing face. Nothing inside it moves, so nothing inside it wears.

Wide Bars, No Fairing

The GSX-S1000 puts the rider upright behind nothing at all, which is a deliberate choice and the reason the model exists. Everything mechanical on top of the engine is visible from the saddle.

The Launch Criticism

Early bikes were faulted for abrupt throttle response and Suzuki addressed it in software. The complaint has followed the model longer than the fault itself lasted.

Before a Remap

Any fuelling work on this engine should start from a head that is not admitting unmetered air. Otherwise the readings describe the plumbing rather than the combustion.

Original Fasteners

Suzuki's bolt spacing and Suzuki's torque figures. Nothing is drilled, nothing is tapped and no thread in the head is disturbed.

Not the Electrical Half

The ECU watches its solenoid independently of what is bolted to the head. The circuit still needs the electrical eliminator.

Type Approval

Emissions equipment is part of the approval and removing it ends road legality across Europe. This belongs on a bike used at circuits.

Straight Back to Standard

The reed housing refits on its own fasteners with no replacement parts required. Keep it and the bike can be returned before a sale.

Fitment and Compatibility

  • Suzuki GSX-S1000 (2016–2026)

Specifications

Model JP ES 028
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits Suzuki GSX-S1000 (2016–2026)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x block-off plate
FitmentWhich bikes this fits
  • Suzuki GSX-S1000 (2016–2026)
07 · Support

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08 · Paddock

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