Yes I have always thought quieter is better so maybe there is something to this. I'll be interested to see what the dyno says when Bill checks it out in his 7.3 Hey thanks for the stickers
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2000 F-250 SCLB 2wd 7.3 auto PHP stock-65t-80dd-120race-high idle-no start 4"tb exh, wicked wheel, 3 guages, AIS, coolant filt,
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