Dyno Tune?
 

If I was to take my car to get dyno tuned what exactly will it do for my car?

Does it just give me a rough idea of what rwhp its putting out?

Will they tune my car while its there?(if so what will they do exactly and what will I gain?)


Details please. :kekekegay:


edit: Also what are the usual prices.. and how long does the whole process take? :)