gee, this sounds like what i explain to people thinkin that all 6th gen hatches are EK9sjspeczcturbo said:ED7 to be exact, not a EF9, EF9's were only the jdm sir's, not the usdm cars, teh usdm si which he has is a ED7, learn this and you'll be happy.
it's either your valve seals or piston rings leaking, this happens after about 14-16 years on a si motor, the fun will begin from here.