Discussion Starter · #1 ·
Hey guys! I've got a 2007 Armada, FFV with the dreaded cracked manifold. I'll be having JBA long tubes installed later this week. Unfortunately, I can only afford the header install right now, so it will be a little while before I install Cajun pipes and Uprev. My question is: what are my options for checking AFR after my header install? Does it have to be checked on a dyno? Or can I simply check fuel curves on a scanner or handheld tuner? I can hear a rattle in bank 2 manifold cat, so that's the only reason I'm not waiting until I can afford Cajun pipes and Uprev before my header install. And thanks to the search button, I've read that FFV vehicles can get away without a tune for a little while....