Here in Ontario, Canada, we have to pass an emissions test every two years. I thought I'd share some numbers I got for my stock (except for comptech drop-in filter) 98 ITR. It has about 35K Kms on it, daily driven, tracked. The car put down about 164 HP on a dynojet at 6000 Kms. The car was broken in according to Honda schedule, first oil change as per same schedule.


Hydro Carbon (ppm) limit=86 ITR=24
Carbon Monoxide (%) limit=0.48 ITR=0.04
Nitrogen Oxide (ppm) limit=656 ITR=4

RPM measured = 2383

I must say, these are really good numbers. I don't know what the ULEV standard is, but I wonder if the ITR would qualify.