Best Supercharger Kits for 2018-2021 Mustang GT (S550)

A supercharger is the single biggest power adder you can bolt onto a 2018-2021 Mustang GT, and the Edelbrock E-Force lineup is the most popular way to do it. The Gen 3 5.0L Coyote leaves the factory with 460 hp and 420 lb-ft, and an Edelbrock E-Force positive-displacement kit turns that into anywhere from roughly 665 hp in Stage 1 to about 810 hp in Stage 2 (R2650) trim. At our Tampa, FL shop we install E-Force kits on S550 GTs regularly, so this buyer's guide breaks down every Edelbrock supercharger option for the 2018-2021 Mustang GT: what each kit makes, what it costs, what it fits, and which one is right for your build.

Why Supercharge a 2018-2021 Mustang GT?

A supercharger is a belt-driven air pump that forces more air into the engine than it could ever draw on its own, and on the 2018-2021 Mustang GT it is the fastest route to 600-plus horsepower. The Gen 3 Coyote 5.0L makes 460 hp and 420 lb-ft in stock form – strong, but the short-block, forged-piston-friendly bottom end, and dual direct-plus-port (DI/PI) fuel system have far more headroom than the naturally aspirated tune uses. Bolting on an Edelbrock E-Force kit typically adds 45% to 75% more crank horsepower depending on stage, which is why it dwarfs the 15-30 hp you would see from an intake, tune, and cat-back exhaust combined.

The E-Force is a positive-displacement (Roots-style) supercharger built around an Eaton TVS (Twin Vortices Series) rotor pack. Unlike a centrifugal blower or a turbo – both of which build boost as engine speed climbs – a TVS unit delivers nearly full boost the instant you crack the throttle. On a heavy street car like the S550, that means the torque curve is flat and immediate: you feel the hit at 2,000 rpm, not at 5,000. Edelbrock mounts the blower on top of the engine with an integrated air-to-water intercooler, which keeps intake charge temperatures down and power consistent pull after pull, even in Florida summer heat.

Edelbrock E-Force Supercharger Kits Compared

Edelbrock offers the E-Force for the 2018-2021 Mustang GT in several tiers, from a bolt-on-and-drive Stage 1 to the 810-hp-capable Stage 2 with the larger R2650 blower. All of them share the same core TVS architecture and intercooler; the differences come down to blower size, boost, fueling, and whether tuning is included. Here is how the kits we stock stack up.

The Kits: Which Edelbrock E-Force Is Right for You?

1. Edelbrock E-Force Stage 2 (R2650) – Our Top Pick

The Stage 2 kit is the one to buy if your goal is maximum streetable power. It swaps in the larger Eaton TVS R2650 (2.65 liters of displacement per revolution) and pairs it with upgraded fueling and Edelbrock's calibration to make up to 810 hp on 91-93 octane pump gas – a 350-hp gain over stock. Because the tuner and calibration are included in this version, it is a complete solution: install it, load the tune, and drive. We also stock a Stage 2 R2650 without tuner version for shops running their own dyno calibration.

2. Edelbrock E-Force Stage 1 Street Kit

The Stage 1 Street Kit is the value pick and the most streetable of the bunch. Running roughly 7 psi through the TVS blower, it lifts the Gen 3 Coyote to about 665-700 hp – a 45%-plus power increase – while retaining excellent drivability, cold starts, and daily-driver manners. This is the "w/o tuner" version, so you will add an Edelbrock or custom calibration; it is the ideal starting point if you want big-blower reliability now and the option to grow into the R2650 later.

3. Edelbrock E-Force Pro Tuner Kit

The Pro Tuner Kit (fits 2015-2019 Mustang 5.0L) is the E-Force hardware without a factory calibration – built for enthusiasts and shops who plan to run their own custom tune, E85, or a more aggressive pulley setup. You get the same TVS blower and intercooled top-mount design, but the final power number is defined by your tuner and fuel. It is the most flexible platform for a built-engine or race-gas combination. Note that 2015-2017 cars use the Gen 2 (port-injection) Coyote, while 2018-2019 cars use the Gen 3 DI/PI engine – confirm your year at checkout.

4. Edelbrock R2650 Stage 1-to-2 Upgrade Kit

Already running a Stage 1 E-Force? The R2650 Upgrade Kit is how you get to Stage 2 power without buying a whole new supercharger. It supplies the larger R2650 rotor pack and supporting hardware to unlock up to 810 hp, protecting your original investment. At $5,995.95 it is the smart path for owners who bought in at Stage 1 and are ready for more.

How Much Power Will You Actually Gain?

Expect a 45% to 75% crank horsepower increase over the 2018-2021 Mustang GT's stock 460 hp, scaling with the kit you choose. The Stage 1 Street Kit lands around 665-700 hp at roughly 7 psi – big, drivable, and easy on the drivetrain. Step up to the Stage 2 R2650 and boost and fueling climb to deliver up to 810 hp on quality 91-93 octane pump gas. The Pro Tuner kit has no published ceiling because it is defined by your calibration; on E85 or race fuel with a smaller pulley, well-built S550 combos routinely exceed those numbers. Just as important, the positive-displacement E-Force adds torque everywhere, not just at redline – the low-end shove is what makes a supercharged S550 so addictive on the street.

What Supporting Mods and Install Does It Need?

Each E-Force kit is a complete, intercooled system that includes the blower, manifold, high-flow fuel injectors, heat exchanger, and hardware, so most builds do not need extra parts to run the advertised power. A professional install typically takes 8 to 12 hours because the intake manifold, fuel system, and cooling lines all come apart. At the 800-hp Stage 2 level we recommend a few supporting upgrades: fresh colder spark plugs, a clutch upgrade on manual cars, and attention to the driveshaft and half-shafts if you plan to launch hard. Every kit still needs a calibration – the "with tuner" Stage 2 includes it, while the Stage 1 Street Kit, Pro Tuner kit, and any custom pulley change require a matching tune to run safely.

Supercharger vs. Turbo vs. ProCharger for the S550

For a street-driven 2018-2021 Mustang GT, a positive-displacement supercharger like the E-Force gives the most immediate, linear power delivery. A twin-screw or Roots-style TVS blower produces boost the instant the throttle opens, so peak torque arrives low in the rev range. A centrifugal supercharger (such as a ProCharger) builds boost with engine rpm, making bigger top-end numbers but a softer bottom end. A turbo kit can make the most peak power of all and runs cooler intake air, but adds complexity, packaging challenges, and lag. For a daily-driven or weekend S550 that needs to feel strong from a roll and at every stoplight, the intercooled E-Force positive-displacement kit is the most user-friendly, reliable path to 665-810 hp.