i probly will b gettin my dc headers and kr cats put on soon, so i was wonderin if i should get my car dynoed to check my a/f ratio or do u think i should b alright with my minor boltons? thanks.

 

Personally, I'd get dyno'd. the cats alone will make you lean. I'm not sure how the headers will effect the mix, but I think that a dyno would be a good idea.

To give you an idea, here's a dyno of my stock A/F ratio (Blue) vs. my modded A/F (Red). (The Green line is what I am trying to get my A/F adjusted to using my new GReddy eManage.)