Yesterday I bought a 98' Honda Civic DX. Can anyone tell me the best and most efficient uncostly way to upgrade my engine? Not replace the engine, but make the engine it has faster? Any input would be gladly appriciated.For the record, I'm an experienced Honda owner, and I didn't spend a lot of money on this car. It was 3700. I got it mainly for gas miliage (32 mpg city; 37 mpg highway; DAMN!) and reliability. Anyone who answers this question for me I'd rather it be a Honda enthusiest.

Just thought I"d share some extra info.