T.T.I's vs. ........you be the judge

Tti's work just fine on whatever application you use them on..my 416 pumped out 520+ h.p. and 11.0's in the 1/4 and those are "real world" numbers,not some magazine or from someone who has'nt got a clue!!!



How do you know you would not make more HP and go quicker with a different header?