Post by
allensteiner »
https://forums.nicoclub.com/allensteiner-u79163.html
Mon Aug 31, 2009 3:59 pm
intake and exhaust won't have much effect on your afr - not enough to tune. most newer cars now say they run lean (like my 05 bonneville) because of emissions. unless you put a blower on it you don't need to tune. plus if you don't know what you're doing you won't pass inspections and your car will run like crap.