low 84,
I run a single 40 series Flowmaster with a cat (blown out by accident
). That one makes enough sound for me. Two would awsome. I can drive at highway speeds and the noise is not a problem. I hear more noise from the vent windows. At low speeds it sounds very nice. The loudest sound seems to be around 1100-1300 RPMs. Mine single dumps infront of the axel. The resonance at idle when parked sounds really good. If you use some sound killing material under the carpet and put some 12' thumpers behind the seat like me you wont hear a thing.
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Gerardo
1983 Custom Truck
TX Plates: "BAD BOW"
http://www.geocities.com/abetterchemist/