Originally Posted by MrBig

I have the Z-Tube and K&N filter I would like to install on my 6MT, but I'm concerned about the post I read yesterday about a loss of power on the '05 with the tube, filter and the plenum installed. Has anyone else seen or felt any power loss with just the Z-tube and K&N? I personally can't see why there would be, but I want to ask before I make the mod.