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Hey everyone, Justin with AmericanMuscle.com, and this is our PowerPack Bolt-on build up
for all 05-09 Mustang GTs. The goal of this Power Pack is to take our stock 07 GT, and
combine it with some of our most popular performance bolt ons. The result will be twofold, we're
going to add more horsepower and torque at the rear wheels, while really cranking up
the volume on our 4.6L to make our GT sound as tough as it looks. Currently, our 2007
GT is bone-stock performance wise, so let's get it outside and hear how that stock exhaust
sounds, and then get it back on the dyno to get some baseline numbers down. So our stock
dyno run gave us 259 horsepower, and 289 ft/lbs of torque. Alright, now that we've got some
baseline numbers from our 07 GT, we're going to talk to Mike Wilson, our lead calibrator
from Bama performance, to walk us through some of the mods we're going to do today.
Mike, what have you got up first for us? Mike: Well, first we're going to install this Airaid
race cold air intake which is a great first mod, it's going to increase air flow, give
us a big gain in horsepower and torque, and has a really easy install. Justin: Alright
Mike, I know with some cold air intake systems you need a tune, sometimes you don't, what's
up with this Airaid? Mike: The Airaid Race cold air intake does require a tune, because
of that, we're going to install a Bama performance 93 octane race tune, which is going to increase
our horsepower and torque by adjusting the spark curves, fuel map, the drive by wire
calibration, really improves the horsepower and torque. Justin: That's awesome man, I
know in addition to that we're also going to throw in a Pypes off road X-pipe, and also
a Pypes axleback system as well, what can we expect from that? Mike: That's also going
to free up the exhaust flow which is going to give us more horsepower and torque, and
it's going to sound incredible compared to your stock exhaust. Justin: Our second dyno
run with all the performance parts installed on our 2007 GT gave us 293 horsepower, and
309 ft/lbs of torque, making for a peak gain of 35 horsepower, and gains of 36 horsepower
and 29 ft/lbs of torque throughout the curve. Alright Mike, that's awesome, what do you
think of the results? Mike: exactly what I expected. We're putting the cold air kit on,
the exhaust, and wrapping it all up with a custom tune, we're definitely going to feel
a big difference in the street. Justin: Awesome. Well, with that said, we're going to get our
07 GT back on the streets, because I'm dying to hear how this Pypes combination is going
to sound versus our stock exhaust so thanks again, Mike. Mike: Any time. Justin: Now that
we have our 07 GT out on the road we finally get to see these mods in action and I've got
to tell you they're really doing their job. Our GT just pulls so much harder on the upper
RPM range, which means our car is breathing a whole heck of a lot easier. The best part
is, they installed easily in about 2 hours, with simple hand tools and a few floor jacks.
Be sure to check out our other 05-09 Mustang GT bolt on build ups, where we work on our
appearance, help get our GT off the line, and make it handle a little better.