I run an AEM dryflow filter, but it's a 9" cone. I assume you are looking for a stock filter? The stock paper filter, isn't supposed to be very restrictive. Not sure what I think about that. I've run a K&N in my gutted stock airbox, back in the day.

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04 Indy SS build #972
XP, TOG's, Lightning injectors, 2.8 pulley, 105 CC springs, Wizaired, 3.29 gears, tripleedgeperformance ported blower, machined LIM, 180* tstat, RS12YC@.053, FP rewire, Alt rewire, stage 1 V boost, PRJ wires, Stage 2 IC