usnfenix

iTrader: (11)

this just feels like a question i already know the answer too but would like to know for sure. i have long tubes on my ls1 and denso's in the front and the stock o2 sensors in the rear. car has not been tuned yet and now has a new intake manifold, tb, AIR delete and longtubes. do i need a tune to avoid problems given that my rear o2 are not deleted or simulated? will this cause any abnormal idleing/driving? or would both needing to tune out the AIR and rear o2 cause idle/drivability problems?
it has been 4 months since i did all these mods.