I have an auotmatic 2000 civic ex and well it aint fast enough.. i want a little more horsepower will it give me that? i'm not trying to race or anything i just want a little more speed .. i currently straight piped and added an intake.. helped a little not much.. do i expect anything from headers?

 

yea i think you get 50 hp for headers

 

^^ Not helpful.

You will not get much from bolts ons with your motor, period. Especially since it is automatic. A header (just one), will probably give you about 1-3hp extra.