bought a st200 manifold so i thought der to put on my ghia x v6 its exactly the same as my original one,or am i missing something. throttle body seems the same,but the lower inlet was different with smaller bores,well its all been put on and have significant improvement in acceleration,which is what i wanted,turn traction control off foot down it flys.The things still niggling me lots off different advice whos right,do i need k&n filter put on,someone mentioned green injectors,some say leave it as it is,never seem to get same advice all different.