could I use a 60g or a t3 wastegate actuator on a t25?

 

you can use anything you want, but you will have to "customize" it. i have a t-25 and am using a t3 wastgate. all i did was break the original one of the t25 bracket and spot weld the new one to it and extend the arm. not to hard and doesn't look to ghettofab either.