Sorry to bring this thread up but stock sr's are tuned till they max out injectors, then as more boost you add it starts leaning out, my atock sr20det does about 10.2 afr at wot at 7psi no tunning needed unless you want to lean out the afr to make more power or when upgrading injectors/maf when your tuned for a injector setup your tuned till they max (correct me on this if im wrong lol)
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