I've retro fitted the shaker 1000 subs into my non-shaker car. I love them. I'm no audio geek, but it's plenty of bass for me and they sound great. And an OEM fit like none other.
2011 GT Premium 6-Speed
GO:S550 Longblock, Boss 302 Intake Manifold, Boss 302 Exhaust Cams, Airiad CAI, Boss 302 H-Pipe and Side Pipes, Borla S-Type Axlebacks
SHOW:GT350 20” Wheels, California Special/Boss Rear Spoiler, LED Marker Lights, S550 Style Headlights with HIDs