I just put a cold air intake in my 2000 Outback wagon 2.5l non-turbo. Now it's taking in more air than it can push out the stock exhaust, but no one makes an aftermarket sytem for the outback wagon. What should I do? Bigger fuel injectors? and muffler?

i cold are intake isnt gonna make a difference like that. your stock exaust is fine for handeling it as are your injectors. your money would be better spent on handleing upgrades that will give your ride much more fun than the 1 or so hp ihcreases you might get form a "cold air intake"