I went in for the emissions test today. My b-day being in Feb. and it being an '04, I figured I might be the 1st one in the club that has done this. LOL!
2004 Mazda 3 GT:
-AEM intake
-Magnaflow Catback exhaust.
Results: Pass
ASM 2525:
HC ppm: Limit - 66, Reading -6
CO%: Limit - 0.37, Reading - 0.00
NO ppm: Limit - 505, Reading - 0
Curb Idle
HC ppm: Limit - 150, Reading -9
CO%: Limit - 0.70, Reading - 0.41
NO ppm: Limit - N/A , Reading - N/A
The car was near perfect and no issues to be concerned of.
So if any of you are interested in posting your results, go ahead. This may be helpful for others who are concerned with this type of test.