So for starters I’m 22, just bought my first project car and dream car and I need help passing emissions. I bought a 2003 Honda S2000 that is boosted and I’m struggling to get it to pass. 

I’m new to project cars and hardly know what’s going on but I’ve gotten a little help from some family and friends. Unfortunately I’ve ran emissions multiple times and have gotten it close but I need ideas. So far I’ve done an oil change, new spark plugs, ran cleaner through the exhaust, fuel pump upgrade to a walbro450 on a new E85Tune. 

There is a turbo kit that was installed by previous owner and I’ve cut a test pipe and had an exhaust shop weld VBand clamps for a cat which is how it dropped so much on the 31st with the prior tune but it seems like I can’t get it anywhere without Nox or Hydrocarbons switching on passing and failing

Correct me if I’m wrong but I believe I can get it to pass with the turbo kit on. I do however have all the OEM parts to put it back to stock but that’s a last resort as I don’t have much time anymore

I’ve spent probably around 3k on fixing the car from misfiring to majority of it being the Tune and Dyno running me about 1300$. Point is, I desperately need help and it’s getting real expensive. 

Need help passing Colorado Emissions