I went up about 17HP in my Escort GT with only an intake, exhaust and header. That thing only started at 127HP...i think....maybe 135...i forget the Mazda 1.8 DOHC from that era. But I think 180 should be obtainable.
Because I want this extra power, everyone says to me "You should have waited for an ST focus".
The difference is buying an 2012 SEL 5spd, then modding a few things later, I get more of what I want, and I can spread the cost out. I can barely afford this 2012 SEL as it is. I really shouldn't be doing it now, but I sort of HAVE to get a new car anyway, and really could not wait for the ST.
"If you're fighting to live, it's okay to die." - Dave Mustaine