F150online Forums - Flowmaster. American Thunder 40 Vs Force II 50's on the 5.4

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02F15054

Apr 22, 2004 02:50 AM

Flowmaster. American Thunder 40 Vs Force II 50's on the 5.4

Im looking to do a duel out the side, but Flowmaster Just came out with the 40 series American Thunder kit for the 5.4 Just wondering if anyone had installed it yet. The interior sound shouldnt be that bad given how far back the can is. The force 2 is nice but louder is always better
Ry

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