Dude, i understand your english is not so good, and i applaud you for putting forth the effort.

We have asked this before, please have your subject titles be more descriptive..."HOW" or "WHY" are not descriptive enough...also, offer more info to follow up your questions...your car year and trim, mods you have done...maybe your overall goal for the car, that way you'll get the answers your looking for much easier.