I suppose you're right didn't even cross my mind about the retuning! Kinda hard to believe this is supposedly to add over 20hp but only one way to find out! Lol I might have to invest in one and see the difference with the stock set up.I think he meant that his setup loses power because he needs a new tune to take into account the intake... but a stock engine or basic tune that allow for real time adapting based on readings from the MAF would *hopefully* realize a (very) small gain. I personally hate the sound of intakes, especially on smaller engines, so I have no horse in this race. Was just curious if it would actually fit.