Nothing worked good with this intake a t looked like crap no where to hide it , drilled and tapped the pass side rear runner and put a 1/8 npt 90 in it looks a lot better. greased it all up before i tappped it and only drilled a 1/8 hole right through the intake and then the big hole only enough to get theads in it looks good. Just afraid to put a hole in a perfectly good piece of aluminum