Both of my G's have just the Z-tube. I have a drop-in K&N in the coupe and a NAPA (Wix) $5 filter in the sedan.Guju Rider wrote:i was just wondernig if i would be able to use just the z-tube and keep the regular intake box..i noticed that there would be another piece that i need that goes between the intake box and the z-tube..i have other questions regarding this matter but i just wanna make sure that this is possible before i ask anyother questions