Wow! You gotta be crazy to dump so much money into the n52 just for maybe 230whp
. I admire your drive to do so, but damn! I love my 328i and I also loved the 1 series I had, but unless this was going into a track only car and you didn't have any other option/car to track, its not worth the money. It pains me to think the total cost all of this is costing you, but you must love your car so much, so that's cool. Congrats and good luck!!