I have the following:

If used in a Tial 38mm pressure ratings
Small Yellow 3.6 psi
Small Green 7.25 psi
Small Blue 8.7 psi

Will also work in other Tial wastegates like the 44mm.

All for $55 shipped

Same part numbers as here plus this has a Tial chart
http://www.amsperformance.com/cart/T...e-Springs.html