Got an hvh super sucker on mine too. Bought a new aluminum one since when I built my new motor I found the inside of the plastic one was hangin on by a thread (cpl of lil flash fires from alky tryin to start my burnout without enough heat in the motor) didn't know it at the time bcuz alky burns clear. I suggest the aluminum one for the possibility of what almost happened to me could happen to anyone. Gas or alky! As for benefits- I have no clue cuz I've never ran without it but like "excelerater" said- it does look cool! Lol! And as "supe" said-he's never put one on and lost E.T