I hollowed out my cats which basically does the same as removing them. It makes kind of a deeper sound. I recommend hollowing them out that way you might be able to pass car inspections. It should add a little gain in hp, like 5-10. it shouldn't cause any problems with your car.
Current Mods:
Custom Exhaust w/ TSRM muffler,Injen CAI,Hotchkis Lowering Springs,Carbon Fiber Dash,35% Tint,UnderDash Neons,S2000 Antenna,Redded Out Tail Lights,Red Corner Lenses + Blinkers,Radio Face, AEM Tru-Power Pulley
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