hey everyone, me and my dad just installed the F sport lower intake box on my is250, and i must say, it sounds bad *** at full throttle, its pretty much exactly like a cold air intake, but without the metal pipe.

 

Congrats on your lower f sport box install. You should get the matching f sport pipe to make a little more power but if sound is what you desired, you made an awesome choice.

 

thanks, the sound is amazing!

 

If you're looking for a cost conscience alternative, many members have gone with the Joe Z Intake pipe.