PERFORMANCE / EST. 2026
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2015–2017 Mustang GT Power Pack 1: understand the upgrade boundary

Understand Power Pack 1 contents and upgrade limitations.

GUIDE OVERVIEW

Difficulty
Introductory · 1/5
Time
1 min read
Vehicle / platform
M-9603-M8 for 2015–2017 Mustang GT; US and Canadian vehicles.

Identify the package

Power Pack 1 includes a high-flow K&N filter and calibration. Ford describes Power Pack 2 separately, with a GT350 intake, 87mm throttle body and adapter. Do not confuse the second package’s hardware list with what is supplied in Power Pack 1.

Sources 1

Plan once

Ford says the packages cannot be upgraded without purchasing an entire kit. Write down the intended finished configuration before ordering. This avoids treating an initial purchase as an assured credit toward a later package.

Sources 1

Prepare for calibration

The included ProCal 3 requires a laptop and internet access. Ford lists manual and automatic calibrations, with no-lift shifting on the manual and a revised shift schedule on the automatic. Premium fuel is required for maximum performance. Use the current ProCal procedure to install; this page is a package-selection reference, not a replacement for programming instructions.

Sources 1

Sources / references 1
  1. Ford Performance 2015–2017 Mustang GT Power Pack 1: understand the upgrade boundary ↗Reviewed Oct 8, 2026

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