Just seen these advertised quite a bit.

Just wondered if there’s any real world results or thoughts.

It looks restrictive to me, I was expecting the vanes to funnel wider towards the end, but it’s drawn as the same/narrower.

 

Looks like a normal intercooler used by many companies. Japspeed have then for under £200

 

It would be interesting to know if the internal vaning is common to all of them or if it even makes a difference. I suspect this would be a lot more common on the higher end units if it did.