I need some opinions on who makes the best external wastegate. My Dekltagate mark II started leaking at the diaphragm. I bought a new diaphragm, but I will be buying a new wastegate scine I've heard mixed things about the deltagate. I would like to get a new wastegate that uses the same mounting flanges as the deltagate.
Thanks.

Tial 38mm. Hands down (for RS-T and smaller engine setups, if going high high boost then I'd recommend upgrading to a Tial 45mm).

I have the USDM STi shortblock, so I'm looking at at least 1 bar.
Do you know if the Tial has the same mounting pattern as the Daeltagate? I've looked at the pics and it looks like it will bolt up.

Nevermind, It says on there site that it is a direct replacement.
I think I'm going with the 38mm. Thanks!

I like my AVO alot!!!!!!!!!