Hello, I have super high nox emission and I have no clue what i'm doing. (2005 subaru legacy 2.5 GT Limited Sedan 4d) (179853 miles)

[imnothing3922]

I stupidly bought a car to get from home, work, and school but it has no emissions done in the state of colorado. Here you can have a limit of 1.5000 nox emission my car is at about 3.7084. I really like this car and I don't want to get rid of it but I also don't want to spend a fortune to get it fixed. Is there any suggestions or help for someone in this situation.

 

[imnothing3922]

this is the diagnostic info if this helps