Need help with a wastegate.Dont want to have to modify the manifold.So i gess i have to go with a internal unless I can mount it some were elese than the manifold.If not how hard is it to do a internal.

you need to buy a swingvalve assembly and a waste gate actuator...if your turbo doesnt have this stuff already..if your waste-gate actuator is not set at your certain desired PSI then you will need to find this out..buy one according to your needs...or buy a manual boost controller to controll your wastegate. either way you still need those first 2 items i mentioned above.

Actually How much is it to have a shop weld it on?