The driftmotion ct-1j mod is very good. It is direct bolt on with little mod and there is a kit with all hoses to run oil feed and return. It is ment to be an alternative to replacing the stock twins when they start smoking. Origionally some people where having trouble with the stock twins after a couple years because they would start smoking real bad and having two turbos rebuilt was expensive. You can take this and have a very nice 57 trim put on and have great boost without losing much to spool time.