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JML EN 250i / EN 250i PRO 300cc conversion kit
JML EN 300 Zylinder + Kolben + Zubehör
JML EN powerbomb header without lambda sensor ports
JML EN 250i / EN 250i PRO 300cc conversion kit
JML EN 300 Zylinder + Kolben + Zubehör
JML EN powerbomb header without lambda sensor ports
New in

JML EN 250i / EN 250i PRO 300cc conversion kit

Fits to

JML EN 250i 2025, JML EN 250i PRO 2025

Size
uniwersal
769,00 zł
incl. VAT / Stück
Lowest price in 30 days before discount: / Stück
Regular price: 778,00 zł / Stück -1.16%
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In a set

JML EN 300 Zylinder + Kolben + Zubehör
JML EN 300 Zylinder + Kolben + Zubehör (1 Stück )
489,00 zł / Stück
Product unavailable.
JML EN powerbomb header without lambda sensor ports
JML EN powerbomb header without lambda sensor ports (1 Stück )
289,00 zł / Stück
Product unavailable.
Choose a year of production
JML
Symbol
7422920936901
Producer code
7422920936901

Complete JML Tuning Kit – Cylinder, Piston, Gaskets + Exhaust Valve + Exhaust System with PowerBomb (without catalyst)

This kit is a full solution for riders seeking a significant power increase and improved engine performance in JML EN250i and EN250i PRO motorcycles.

The set includes:

  • Cylinder with piston and complete gasket kit – ensuring durability and optimal compression.

  • Exhaust valve – precisely matched component for improved exhaust flow.

  • Exhaust system with PowerBomb header (without catalyst) – designed to increase torque in the low and mid RPM range while reducing the overall weight of the bike.

The kit is intended for sport use only and is not approved for road use.

Installing the exhaust system without a catalyst requires uploading a new ignition map to ensure proper engine operation. Please contact an authorized JML dealer or us directly for this procedure.

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