also need to take the Auto trans ecu out connect reverse lights and starting also tell the car ecu its not an auto so give mre power, then you need a different manual tail shaft and diff... and the diff is a mother to pull our out of a gen 3, i was thinking about doing my 03 B4 conversion from auto to manual even went as far finding and buying a manual 01 B4 with a rooted engine, but instead i bought a front cut and changed the engine over so have 2 B4's now