how much power does a turbo system increases on a 1.6 l honda civic??
 

i have used intake..and the best spark plugs...performance chip but i want more at reasonable price

put it this way... you would still get beat by a stock WRX... and they only run a 14.4 1/4 mile.

Unless the turbo is the size of the gas tank or running ungoldly amounts of boost, you wont really see much of an inprovement, probably around 5-10% hp increase