TB to MAF coupler
 

Been taking measurements and surfing around looking for a coupler for my TB to MAF,

TB is a 2005 Chevy Express and measures 4" od or 102mm
MAF is stock replacement and measures 3 3/8 od or ~85mm

After looking around I see most hose couplers measured in inches and there is no such thing as a 3 3/8" id so I figure it must be 3 1/4" or ~82mm

The one I'm looking at is a vibrant
https://www.summitracing.com/parts/vpe-2839

any one have some advice on what to do here?

That's the one I would try,is the length of it ok ?

intake hoses carries various sizes, bends, reducers, etc. It's where I got my coupler.

Went with a spectr coupler with 3.5"

Picked the repacked unit for $12, if it don't work I'll get the 3.25 one. It is 6" long so should be plenty