:owhere is the best place to get a stainless manifold?and how much should you expect to pay,i would also like to get one,i once fitted an oettinger one to a 16 valve,that also cracked and had to be replaced under warranty,would a mild steel one be less prone to cracking?i too have a magnex system,would you expect such a great difference in torque low down with a stainless 4-1 manifold?