S550 HO System – Install 800hp in a Day, Knock on the 9-second Door At the Track

RUN A 10.2, THEN DRIVE HOME
Track results don’t lie. We strapped a ProCharger to a 2018–2023 Mustang S550, hit the track, and loved the results! After a series of consistent, repeat passes, our best run was a 10.2-second quarter mile at 142 mph—on pump gas, in full street trim. That’s not a trailer queen. That’s a street-driven, daily-use Mustang that you can race on Saturday and cruise on Sunday.
Thanks to 315+ rear-wheel horsepower gains, this setup turns your Mustang into a serious performer while keeping all the comfort and drivability you love.
PROVEN POWER: OVER 315+ HP GAINS TO THE REAR WHEELS

So where does that speed come from? Our High Output (HO) Supercharger System adds over 315 RWHP (rear-wheel horsepower) to your Mustang. This shared drive supercharger system, which we were first to introduce to the market in 2015 and first into the 9’s (with a stock 5.0) in 2018, delivers big power with proven reliability—and now, with updated boost levels of 11–12 psi, it’s even more potent right out of the box. ProCharger kits are lighter than bulky roots and screw blowers—so you get better handling, easier installs, and a quicker ride. Why lug around extra weight when you can fly?
We’ve seen a lot of power claims out there—so here’s how to check the numbers for yourself:
- A stock Mustang GT makes around 380-400 RWHP (460 OEM crank HP rating)
- Add a ProCharger, and our dyno numbers were 720+ RWHP on pump gas
- That’s over 315 HP more at the wheels!
To estimate crank horsepower, divide RWHP by 0.85 (to account for about 15% drivetrain loss). That puts your Mustang at 850+ HP at the crank. It’s easy math—and it proves the ProCharger difference of real, usable power with street-friendly manners.
If you see impressive crank horsepower numbers, consider checking the math.
SEE HOW EASY IT IS TO INSTALL
Watch how simple it is to bolt on serious horsepower with our complete system for the Mustang GT, Bullitt, or Mach 1. No cutting, no crazy tools—just proven parts and a clean install. And with industry-leading availability, you could be making boost by this weekend.
ALL-IN COSTS: PROCHARGER VS. THE COMPETITION

When shopping supercharger systems, be sure to compare the “all-in costs.” You’ll find that our complete systems deliver unmatched value without surprise add-ons or required upgrades.
- Complete Package: Everything you need is included.
- No Hidden Costs: Our system comes ready to install with no guesswork.
- Affordable Upgrades: Want more boost later? No need to replace the whole system.
- Installation: Our simple and quick installation saves you time and money.
Be on the lookout for systems that may require additional tuning, fuel upgrades, and more installation time.
🇺🇸 PROUDLY MADE IN THE USA

Every ProCharger supercharger system is engineered, built, and tested at our headquarters campus in Kansas City. That means fast support, unmatched quality, and products you can trust—backed by American workers and innovation.
IN STOCK. READY TO SHIP.


Skip the wait. ProCharger Mustang kits are in stock now and ship in 2–3 business days. You can go from stock to supercharged in just one weekend.
SEE US AT MUSTANG WEEK TEXAS!

We’d love for you to stop by our booth at Vendor Midway to check out our legacy of Mustang supercharging.
READY TO TRANSFORM YOUR MUSTANG?
- 🔧 Easy to install
- ⚡ 315+ HP gains
- 🏁 10.2-sec track-tested performance
- 🇺🇸 Made in the USA
- 🚚 Ships in 2–3 days
Get real results, real fast with a ProCharger.
To learn more about our Ford Mustang Supercharger Kits, check out our Mustang product page or connect with our sales team:
Phone – (913) 338-2886
Mon – Fri 8am – 5:30pm CST
Sales Email – [email protected]
Tech Email – [email protected]