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Vespa ET4 & LX125 125cc / 150cc Immobilizer Deactivate Remove Bypass CDI

Vespa ET4 & LX125 125cc / 150cc Immobilizer Deactivate Remove Bypass CDI

Regular price £59.95 GBP
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Immobilizer Remove Bypass CDI for Vespa Scooters.

Removes the immobilizer from older Vespa Scooters (2000 – 2009)

UK Stock, Warranty, Fast Free Shipping on all orders. International orders welcome.


Simple Plug and Play replacement CDI that removes the Immobilizer from older Vespa Scooters. After you install our CDI the immobilizer will be completely deactivated. In fact, your scooter will not have an immobilizer at all!

Fits the Air cooled models, such as the Vespa ET4 125 / 150 and Vespa LX125 / LX150.

Also compatible with the 150cc models sold in some overseas markets.

Only suitable for the older Carburettor Models, Circa 2000 to 2008.

Very useful if you have lost your keys or the original immobilizer CDI has failed.


  • Vespa ET4 125cc / 150cc (2000 – 2006)
  • Vespa LX125 / LX150 (2005 – 2009)
  • Vespa LXV125 / LXV150 (2008 – 2009)
  • Vespa S 125 (2007)
  • Vespa GT 125 / 150cc
  • Piaggio Hexagon 150cc
  • Piaggio X9 125 / 150cc
  • Piaggio BV 125cc / 150cc
  • Piaggio Liberty 125cc / 150cc

Replaces the following CDI Part Numbers:

Magneti Marelli ACI600, ACI601, ACI602 ACI603, ACI605


EFI Technology AC1i, AC2i, AC3i AC5i or AC8i

Not suitable for the pre-LEADER engines. (1996 – 2000)

NOTE: This CDI will bypass your immobilizer. Once fitted the Vespa scooter will no longer have an immobilizer.

Any key that can turn the ignition barrel will start the scooter!


Remove the original Vespa LX CDI and bolt this bypass CDI onto the same mountings.

Plug in the 8 Pin Connector into this replacement CDI.

Leave the smaller 3 pin connector disconnected.

Start the engine!

Vespa ET4 Immobilizer Deactivate Remove Bypass CDI

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