Far from an over the top build, but I'm probably into my 521 super cub build, in the 15k-18k neighborhood. I don't remember exact numbers, but I'm in the 125rwhp range. Honestly, compared to a couple of my friends, my build is pretty cheap. I wouldn't doubt if some of my friends are 25k deep into their duners. Chrome and polished metal gets expensive fast. Drag builds can be stupid expensive.