I have a 2000 GTP..Don't know the difference it would sound, but the flowmaster 40's i put on with resonated tips is awesome! Gives it a GOOD rumble, but at the same time it's not too loud, and it certainly doesn't sound like a rice burner.
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2000 Grand Prix GTP...Memphis 1000 watt RMS amp, 2 Audiobahn 15"'s in custom box, Sony X-Plod Deck, and Bose package. Pontiac windshield decal, bumper fill ins, hood scoop, GTP overlay, U-bend delete, 180 T-stat, FlowMaster 40's, 3.5" pulley, CAI.