The headers on mine are cmi, Dont try to shortcut on hight. You are compromising on performance. That motor has all the good stuff in it. And is ready to bolt in the boat tomorrow. You can let gt build the motor and if your lucky it might get done in the middle to end of summer. By then no time to play. My price still is 45,0000.oo To duplicate it would be high 50s to low 60s. Call me I will pm my phone number.