I had Super Turbos with tailpipes, and they were VERY quiet. They had a nice rumble around town, but you couldn't hear them on the highway. The deltaflow 40 seires Flowmasters i have now are about 3-4x as loud. Maybe try some 70 seires Flows, but they are quite expensive.
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'72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride.
'70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck.
'97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg
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