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Intake Power Pack - Stage 2 (99-04 GT)

AmericanMuscle no longer carries the Intake Power Pack - Stage 2 (99-04 GT). Please check out for an updated selection.
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  • Item #52309
  • Market Price $1,064.99
  • You Save 16% ($170.00)
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AmericanMuscle no longer carries the Intake Power Pack - Stage 2 (99-04 GT). Please check out for an updated selection.

  • Stage 2 - Intake Power Pack
  • Improves airflow for more power you can feel
  • JLT Performance Cold Air Intake
  • 70mm Throttle Body
  • Polished upper intake plenum
  • SCT SF3/X3 Power Flash Tuner
  • Includes 3 Custom Bama Tunes
  • Fits 1999 to 2004 GT

Ordering Custom Tunes

Stage 2 - Intake Power Pack Now you can add even more horsepower and torque to your 4.6L powered GT Mustang with an AmericanMuscle Stage 2 - Intake Power Pack. This Stage 2 intake kit includes a 70mm Throttle Body, an Upper Intake Plenum a JLT Cold Air Intake, and a SCT SF3/X3 Power Flash Tuner with Free Custom Bama Tunes for Life!

Application. This Stage 2 Intake Power Pack is specifically designed for use on the 1999 to 2004 GT Mustangs equipped with the SOHC Modular 4.6L V8 engine. JLT Performance Cold Air Intake

Free Flowing Design. The JLT Cold Air Intake kit completely replaces your GT Mustangs restrictive stock factory air box and paper filter element with a high flow S&B Powerstack filter assembly for a noticeable increase in horsepower and acceleration while providing filtration of harmful power robbing dust particles. 70mm Throttle Body

70MM Bore Throttle Body. Cast from 356 aluminum this Mustang throttle body features a generous, free flowing 70mm diameter bore for smoother airflow allowing your 4.6L engine to breathe easier for more power and improved throttle response. Upper Intake Plenum

A Must For Larger Throttle Bodies. Cast from 356 aluminum, this larger upper intake plenum is the perfect compliment to the included 70MM throttle body, improving airflow allowing for larger power gains. SCT SF3/X3 Power Flash Tuner w/ 3 Free Custom Tunes (99-04 GT)

Power you can Tune. The SCT SF3 handheld tuner will allow you to re-tune your Mustangs computer for more power and better drivability. We even included free custom Bama tunes to take full advantage of your new Airaid Cold Air Intake!

Increase your mod's potential. Factory computer settings are calibrated for the original factory components. When making performance modifications, you need to recalibrate the vehicle's computer to realize the full potential that these modifications can achieve.

Free tunes for life! Every customer that purchases a tuner is enrolled in the "Free tunes for life" program. Any time that you make additional mods to your vehicle, our team of SCT certified Bama Custom Tuners will create new tunes for you.

Custom Bama Tunes specific to your vehicle. When you order a tuner, you aren't just getting a tuner - you are getting the tuner and 3 dyno-tested custom Bama tunes:

  • Street (87-93 octane) - the street tune is designed as a daily driver program that focuses in on increasing mid-range power. It does give up a few HP at higher RPMs, but that's why there is a Performance file. Automatic vehicles are further enhanced by making adjustments to the transmission's shift points and firmness.

  • Performance (87-93 octane) - The Performance program is designed to add power at 3000 RPMs and higher, focusing more on the top end horsepower and all out performance driving. Timing, fuel and throttle response settings are slightly more aggressive than the street tune. This is a great track tune but also works well for daily drivers that are looking for a little more "get up and go" than the street tune. The automatic transmission settings are the same as in the street tune.

  • Race (91 - 93 octane) - The race tune will ensure the largest increase in vehicle performance. Using the highest grade of fuel available in your area is mandatory. This file is designed for "Race only Use" as the timing, fuel, and throttle response settings are very aggressive. In fact, the adjustments are so aggressive, that we do not recommend it for daily driving as it may cause your vehicle to try to jump out from a stop and easily spin the tires. Finally, with the automatics, we implement entirely new shift points and firmness settings to further enhance the all-out performance of the vehicle.

Nitrous (91-unleaded race gas) - Our nitrous option can be added to any of our previously mentioned tune options, but only for 91-octane unleaded fuel.

Easy to load; easy to restore. Not only are the custom tunes easy to load on your vehicle, it is just as easy to restore your factory settings. When you load your custom tune on the vehicle, the tuner automatically stores your vehicle's factory settings. To return the vehicle to its factory settings, just plug the tuner back in, select the option to restore the factory settings, and you're done.

SCT SF3/XCalibrator 3 Power Flash Tuner Features:
  • Handheld Tuner based off of SCT's premier LiveWire Tuner
  • Reads / Clears DTC Trouble Codes
  • Enhanced data logging with 8 times the onboard memory (128MB Total!) of previous handhelds in the SCT lineup
  • Upgraded 4-line backlit display
  • Custom tuning applications for 1999-2004 GT Mustang
  • Free USB PC Interface Cable

**NOTE: Programming custom tunes may take 3-4 business days. We recommend ordering other products separately to avoid delay. Some heavily modified cars are not tunable with a mail order tune. Click for details.

Mustang Fitment: 1999 2000 2001 2002 2003 2004 Details

Installation Info

Installation Time: (approx) 3 Hours

Difficulty Level:Advanced mechanical skills required.

  • GT - 99, 00, 01, 02, 03, 04

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