taco eater :
Jacob Fulton from Minneapolis, MN United States
This air filter does a good job and lessening intake noise while staying high flow!!
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Will fit Mikuni VMs
December 19, 2021
taco eater :
Z. Shizzburg from Somerville, MA United States
Shim it with an old 2/2.25 in tire tube cutting and it fits well on my VM20. Sounds awesome! Perfect for those forward facing VM intakes.
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46mm ID
February 20, 2019
taco eater :
Dillon Ryan from Brooklyn
Nice airbox, but ID is definitely closer to 46mm as mentioned in the other reviews. Will no fit on an OKO/Polini PWK without hogging out the opening.
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Really quiets things down
December 11, 2018
taco eater :
Magic from Seattle, WA United States
Love this airbox, works perfect on a polini cp with the included spacer. Catches all that nasty blowback so you dont reek like fuel and also has a nice whistle to it in the mid range. Very good quality, it got ran over by a car and came right back to life without cracking. The little plugs are removable so you can tune the amount of flow or silencing. Thanks again to treats for stocking superior. products.
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Awesome
September 25, 2015
taco eater :
Jay Bolosan from Kailua, HI United States
Put it on my PWK on my magnum, super sweet sound. Grommet is actually 46mm but used radiator hose with 48mm opening fits nice. Box is made of ABS plastic so no flex to it, had to slice in some cuts so it would clamp better onto carb.
Great filter !! 
46mm ID