i just added shorty headers and a 70mm throttle body. my car was tuned prior to this install. mod's made before the professional tune are borla cat back exhaust, and cold air intake. my question is should i adjust optional parameters? and if so which ones?

 

I would say YES. Headers & 70mm throttle body might be too much for optional parameters to handle. Your A/F ratio will be way lean with these 2 mods. You will need to richen up from idle to red line.

 

maxed out on the rich and picked up the spark a tad runs great thanks.

 

If you want to be sure, use your xcal2 and do some datalogging, and you'll see nice graphs of your O2 signals, fuel trims, air flow, etc.