Reflash your 2012-2015 Civic Si or ILX engine computer.

• Fuel, ignition and cam timing optimized.
• VTEC point unchanged
• Rev limiter raised to 7500 rpm
• Speed limiter removed
• 10-15 top end hp gain depending on the dyno and modifications
• 5-12 ft lb top end torque
• Improved throttle response
• California emissions legal (CARB EO D-742)

This is for an ECU reflash - the ECU is not included. Hondata does not sell direct - the reflash must be purchased from a Hondata dealer. The ECU reflash form must be sent with your ECU.

It is not designed to work with a stock 2006-2011 Civic Si and will lose power between 4500rpm and 5600 rpm if installed.

Intakes

The 06 Civic employs a mass air flow sensor that automatically adjusts the air-fuel ratio for increases in air flow from correctly designed intakes and race headers. Intakes for this car are critical. The intake, in particular the size and shape of the piping around the mass air flow sensor, is the primary determinant of fueling for this car. If you have any problems in running rich or lean, then you must retest with the stock intake. Race headers will not cause this engine to run lean.

We recommend that 91 octane fuel be used with this reflash.