use original air cleaner seal up good use 4 in rubber hose 4in outside to 6in inside connector a cut 6in hole in fender run abs pipe do not use pvc abs pipe about 12in 90 elbow strait pipe abs 3ft long by pre cleaner from ebay mount on tube drill hole in piller use self tappers and L brackets silicone screws glue joints seal fender to body with roof patch tube abs is blackish gray color primer and paint if you wish ps use wide short L brackets
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