Ive probably got about 4g’s into it. But if i could do it again i wouldnt cheap out on the mani and i woulda spent some cash for a quality piece. The key to any affordable F/I kit is doing as much as possible by yourself.
However i have got countless hours of sweat and blood into the car. Its not easy working on bmw’s. Not alot of space to work with. Motor is completely stock except for a thicker headgasket .140 to lower compression.