i know you can do cold air, headers, exhaust..but what else and how much would everything cost me all together and seperately and how fast could you actually make a civic ex..i think the engine is a d16? or something..(im new to the whole modifying your engine think completely)

 

you could build or swap, or also do forced induction, or chemical induction..

buildwhat you have...lots of $.
swap (b series engines are a good idea)...lots of $
forced induction(turbo charging, super charging)..depending on how heavy your set up you might have to build as well, will be fast but also... lots of $

chemical induction..i.e. Nitrous....not a bad idea, but still $$$$

next time there is a search function, i recommend using it.

 

+1 cuz thats what the search is for

 

first question: how much money do you have to spend? we'll go from there