what diameters should each passageway be?

edit: its an s5

 

I just did this 2 weekends ago. I will be doing a full write up with pix. If you want some right now let me know.

 

Here are some pix since I had some time.

Stock s5 wg before port


after






One piece of advice is to mark out with a sharpie how much you want to port. After porting for a while close the wg flapper to check how close to the edge of the flapper door you are so you dont overport.

Expect my write up in a week or so. I dont feel like doing it right now haha.

 

wow thanks for the pics. Well turns out my turbo has too much shaft play and well, gonna BNR it instead of rebuilding.