Is anybody using one of these? How do they work performance wise? Do they compare to a volant or just another gimmick?

 

i give it a big N-O. on a dyno run, we LOST 2 max hp. the true flow does nothing really but remove the stock silencers. the tube diameter is the same as stock, and it doesnt fit well into the stock airbox. it does NOT compare to the S&B or Volant.

FYI we are talking about the 5.4?

 

Yes it is for a 5.43 3V. That is what I wanted to know I will strike it off the list.