You loose so much torque with that muffle set up.. Launch times could be so much better.. People need to learn about pressure in the dome and back pressure..
Will you people just stop.. You have zero clue how to set up a car.. I could easily get at least 400+ HP more out of that then you will ever be able to.. Maybe watch videos and not make them
Kinsler does sell a filter cover if you see in some other videos the yellow netting I use but when I race I take it off. Sometimes you have to risk it for the biscuit.