K-Tuned Immobiliser & Multiplexor Bypass For K-Swap

The K-Tuned Immobiliser and Multiplexor Bypass is designed for Honda K-series swap builds that need to run a stock K-series ECU without the factory immobiliser and multiplexor systems causing issues.

When fitting a K20 or K24 engine into a Civic, Integra or other Honda chassis, the original ECU security and multiplexor setup can prevent the conversion from working correctly. This K-Tuned bypass unit disables both systems, making it a useful solution for K-swap wiring where a stock ECU is being retained.

It is a popular choice for keeping a K-swap setup simple and cost-effective, avoiding the need for more expensive standalone or replacement ECU options when the build only requires the factory ECU to operate correctly.

Key Features

• Genuine K-Tuned immobiliser/multiplexor bypass unit
• Designed for Honda K-series swap applications
• Allows use of a compatible stock K-series ECU
• Disables the factory immobiliser system
• Disables the factory multiplexor system
• Useful for K20 and K24 engine conversions
• Simple four-wire installation
• Supplied with T-tap connectors for power and ground
• ECU pins included on the remaining two wires for a cleaner install

ECU Compatibility
Suitable for compatible stock K-series ECUs, including:

• PRB A01-A12 and 305
• PND A01-A09
• PNF
• PRA
• PRD
• PPA

Common Applications

• Honda Civic EG K-swap
• Honda Civic EK K-swap
• Honda Integra DC2 K-swap
• Honda Integra DC5 / Acura RSX
• Honda Civic EP3
• K20 and K24 conversion builds

Installation Notes
This unit uses a four-wire installation. Two wires are used for power and ground, while the other two are supplied with stock ECU pins for installation into the ECU plug once the unused factory wires have been removed.

Professional installation is recommended. Always confirm ECU compatibility and wiring requirements before purchase, especially on non-standard swap harnesses or modified ECU setups.