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Well I finally done it. I manned up and cut a 4" hole in my fender and fabbed up a scoop to cover it. I put it right where the F350 emblem should be on the fender (I will get pics tomarrow I hope). I got the idea this summer while driving with my arm out the window. I had my hand down along the body line dent and noticed that the air would hold my hand to the body if i angled it some. I figured it must be pushing some air so why not! Since the mod I have noticed a drastic reduction in black smoke at 45-55 mph when I have to put the pedal down and lower egts on long hills as well as faster drops in egts as well.
Not so far. I have plans to add a cone type dry filter inside a cyclinder type housing along the fender soon. This all leading up to the custom exhaust maniflods and the hx35w turbo. I have the turbo and the flanges (cut then at work). Just need time and good weather to fab it all up.