I have a 2009 Toyota corolla S 1.8 5speed manual. And want a tad more pep out of it. And by tad, I mean 68 more horsepower. But I also would like to stay naturally aspirated.
I am aware of cai, exhaust, and
programmer. Looking for other
additions that aren't forced
induction. Not a big array of internals
available for the 1.8l. So any ideas?