435 HP, Barely Trying

2015-2017 Mustang GT Performance Parts

The S550 arrived with independent rear suspension and 435 hp of Gen 2 Coyote. Build yours with the tunes, boost, and bolt-ons that take it well past stock.

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The S550's Warm-Up Act

Best 2015-2017 Mustang GT Upgrades

Custom Tune: The highest-value upgrade on the Gen 2 Coyote. It optimizes fuel, timing, and throttle mapping, sharpens the 6R80 auto or MT82 manual, and unlocks bolt-on power. Start with our Mustang tuning guide.

Cold Air Intake: Cooler, denser air for crisper throttle response and supporting flow for bigger mods.

Cat-Back Exhaust: Better flow and the tone the 5.0L deserves, with modest power on top.

Long Tube Headers: The biggest naturally aspirated gain, scavenging far better than the restrictive factory manifolds. Pair with a tune. See long tube vs short tube.

Supercharger: A Whipple, ProCharger, or Roush kit takes the Gen 2 Coyote past 700 horsepower on supporting mods. Compare options in our S550 supercharger guide.

Suspension and Handling: Make the most of the IRS chassis with springs, sway bars, and control arms that put power down and sharpen cornering. See S550 suspension.

Where to Start With Your S550

Stock Is Optional

5 Top Coyote Bolt-Ons

Tune, intake, and exhaust are the highest-value first moves on the Gen 2 Coyote.

Naturally Aspirated Is Cute

Forced Induction

The S550 is a proven supercharger platform. See which kit fits your power goals.

Power Needs Grip

Suspension and Handling

Make the most of that IRS chassis with the right suspension upgrades.

2015-2017 Mustang GT FAQ

Common questions from S550 GT owners.