how much is it for installing those things?
including the tuning and other things needed
is it real that it costs $100/hr?
so if installing the SC needs 8-10hr, it will cost around $1,000 then?
is there any additional cost?
is it ok to get a USED SC?
and also, do i need to get new air filter, etc etc?
im really newb for engine mods, pls help me with that