Inlet design for a blower is very critical and these turbo inlets suck! I took out my ring so I could put in a good one. I took a piece of 4" round T6 and machined it with a two step taper inside. 30 degrees then 15 degrees, like doing multi-angle valve seats. I haven't towed yet but it sure is peppier around town! I can hear a loud rush of air at low rpms(14-1500) that I didn't hear before and when I let off the throttle to shift, it sounds just like a weed whip winding down. I mean WAY more than before!
Craig
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97 3/4Ton, 2WD, 5SP, #11 Plate, 14 Housing, AF942M Air filter, Gutted Cat, 4"From Turbo, Airlift, Shortened Frame, Custom Bed, HEY FORDBOY POWERSTROKE THIS!