performance Upgrade or ??

[empy]

but does the 1.3 push enough air to make the restriction of the stock IHE truly an issue? i am guessing you don't get much of anything from a less restrictive IHE.

but even if you get a 50% hp increase (which is very aggressive for n/a), you still have a relatively weak car as niky said. pede na if you're looking for more power around town and don't mind spending the money, or if you're building a spec racer (for which i wouldn't start with a City anyway in the 1/3 NA class).

kung ganun ang expectations mo, then go for it! but don't expect to build a drag car or a stoplight-to-stoplight racer...good luck