Just loosen that back cam tower and you can slide it in there.
09 BMW 335i E92 Twin turbo
89 Macrocab 4g63 Turbo swapped & Bagged: Build Thread
When u lift up the end caps make sure to put a lil dab of silicone sealer where the caps meets the head. (On the rear and front cap) or oil will seep out in between.