Since my last reply, I've spoken with both Brent from Brenspeed.com and Ken Bjonnes from MD Motorsports, who conducted the cold air comparison test for 5.0 Mustang and fast Ford magazine, and I asked both for their expert opinion and recommondation, concerning the Anderson Ford Motorsport unit. Here are thier comments as follows, the Anderson unit uses a Professional mass air systems Pro. M 80mm. meter that reflashes and recalibrates the Pro. M mass air sensor, which replaces the stock mass air sensor altogether, by which it then sends an electronic signal, simular to that of the stock sensor to the computer, by reducing the size of the capasittor. but the difference is. instead of remapping the air and fuel curve through the computer by using a programmer. its the actual air sensor that is recalibrated instead ,which then allows for more air flow to pass through the air intake, while at the same time, the computer believes that the voltage signal is unchanged, compared to that of the stock air sensor, if that makes any sense LOL.
but at any rate, both experts did confirm that the Anderson unit will give a HP increase without a tune, as stated on his website, in addition, Mr. Bjonnes also confirmed that if you install the Anderson unit, your also able to perform performance mods, (excluding) of course adding a blower, cams, heads, gears, wheel size, with no additional tuning required, However there is of course a downside, you will need a computer re-flash to correct that nasty drive by wire throttle lag. thanks to our rocket scientists we now have at Ford lol.
Personally, in my honest opinion.. I don't think saving $50 - $100 is worth it...meaning whats the point in spending $569.00 for a cold air kit, that will only give a 10-15 HP increase and nothing more.. don't get me wrong here, sure you can add a UD pulley, exhaust and throttle body, all without needing a tune, but what good is adding HP. without the benefits of throttle control, which only a tune can provide, that alone is worth spending the extra $100 as far as I'm concerned...maybe I'm wrong, but I suppose that all depends on what your point of view and what you feel is important along with whatever your particular needs happen to be.. Anyway hope everything I've mentioned here, is something you may find useful..I know it sure has for this 05 GT. owner
if anyone would like the web addresses for Anderson Ford Motorsports and for MD Motorsports, let me know, and I'll send them to anyone who may be interested in contacting them directly... Cheers