Hondata ECU Reflash - 06-11 Civic Si outofstock and the engine is unable

and the engine is unable to push gasses out of the combustion chamber efficiently

and storage to flash faster while saving all of your maps and logs

By reducing the nose

VTEC dropped from 4900 to 3900 rpm

The Spoon 4-2 manifold provides improved exhaust flow with an emphasis on mid-range power and response

Hondata ECU Reflash - 06-11 Civic Si outofstock and the engine is unableReflash your 2006 2011 Civic Si engine computer this reflash is for the US and Mexican 2006 2011 Civic Si with K20Z3 engine. Fuel, ignition and cam timing optimized. VTEC lowered from 5800 rpm to 4500 rpm. VTEC window added. Cam angle optimized. Rev limiter increased to 8600 rpm 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