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Originally Posted by NoBottleJustThrottle
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I knew there was a reason I liked you
Nice job
NOTE (and it's a biggy):
It is not designed to work with a stock 06 Civic Si and will lose power between 4500rpm and 5600 rpm if installed.The 06 Civic employs a mass air flow sensor that automatically adjusts the air-fuel ratio for increases in air flow from intakes and race headers. Race headers will not cause this engine to run lean.
The K20Z3-06Si reflash lowers the VTEC point to 4500 rpm, advances the cam angle and raises the rev limit to 8500 rpm.
This one reflash will work well with a variety of aftermarket performance parts. It will work well with:
An intake
A race header
A combination of intake and race header
Catbacks (as long as they are less restrictive than stock)
The VTEC switch point on this reflash is very smooth - much smoother than previous reflashes. With a stock airbox and race header the switch point is virtually undetectable. For the reduction in VTEC "kick" and aural stimulation, we apologize, but this is the path to maximum power.
Power is gained in the midrange from 4700rpm to 6300 rpm. Power gains above 6500 rpm are negligible, although the higher rev limit will raise average power a little.
As this reflash will work with a combination of aftermarket parts we have two examples of the effect of the same reflash on two 06 Civics. (Both Civics dynoed at about 195 stock HP)
so folks, don't just go spend the money on it if you don't have other mods as well...it's not intended for the stock car. Just wanted to add that because I know somebody will buy without researching it...