so true bro,too many ahbengs put 1000bhp engines in their civics but leave out the brakes and the suspension system...power without control is Nothing..hehe..have to take in mind that a K20A is going to be much heavier than the stock 1.7..the front is going to be much heavier, understeer and torque steer might be an issue when the suspension is not sorted out, and im pretty sure the 1.7 es does not have rear disc break right...just my 2 cents keep calm and chive on!Depending on what engine went in, if the power increase is a lot, please mod the suspension and brakes too......