Will the actuator from either a e6-9 fit on the e4 stock turbo due to i think that my actuator is weak and not holding boost up top when tuning.

 

The actuator on the 9 is different from the 4-8. If you can, get one for an 8 as they have a slightly different design to prevent water corrosion; which is the most common reason for failure of a period of time.

 

will the usdm e8 actuator fit the jdm e4?

 

I was thinking of getting one off ebay. What you guys think of this one?

http://cgi.ebay.com/ebaymotors/ws/eB...#ht_1445wt_723

Thanks much for your assistance in advance.