Roush 2026 Ford Mustang GT/Dark Horse Supercharger Kit (810 HP)
- 810 HP / 630 lb-ft of torque
- Eaton TVS R2650 Supercharger with inverted design
- 13 PSI peak boost at 7,500 RPM
- 0-60 MPH in 2.88 seconds / 10.33-second quarter mile
- Dual 80mm factory throttle bodies retained
- High-flow dual intercooler system
- 3-Year / 36,000-Mile Limited Powertrain Warranty
- SEMA-Certified Emissions Compliant
or as low as $866.58/mo with Affirm
Available
810 horsepower on a stock S650
Real Dynojet pulls from a 2026 Mustang GT with the Roush R2650 kit installed. Stock long-block, factory dual 80mm throttle bodies retained, 93-octane, Magnuson-engineered calibration. No special prep beyond what comes in the kit.
What 810 HP feels like
Times measured on a stock S650 Mustang with slicks on a prepped track. 10R80 automatic, 3.55 rear gears, 93-octane.
What you’re looking at
The kit was engineered around the S650 platform, not adapted to it. Here’s what shows up in the gallery and why it matters.
Built to hold boost under load
- Front-mounted heat exchanger — installs without removing the front fascia
- High-flow Bosch PCE intercooler pump — matched to the dual-IC system
- Dual high-efficiency intercoolers — positioned below the inverted blower
- Custom high-capacity degas bottle — prevents coolant aeration at sustained boost
- Optimized hose routing for clean underhood airflow
The system holds boost lap after lap. Roush engineered this for road-course duty, not just one-and-done timed pulls.
10 hours, advanced difficulty
This is not a weekend driveway job. Plan for a lift, a torque wrench, an OBD-II + SAE J2534 communication device, and a laptop running Roush Diagnostic Tool (RDT) software.
- K-brace stays installed during the swap
- No front fascia removal required
- Custom-formed hoses for clean routing and faster install
- Reuses factory dual 80mm throttle bodies, induction hardware, and most fasteners
- Colder-range Ford Performance spark plugs (reduced gap) included
Tuning is handled in-system. RDT gives you OEM-grade flash reliability and full diagnostic capability over OBD-II — no chasing third-party tunes, no warranty drama on the calibration.
SEMA-Certified · 3-year / 36K powertrain
- SEMA-Certified Emissions Compliant
- 3-year / 36,000-mile limited powertrain warranty included
- Factory top speed retained
- EO pending — not 50-state legal
- Not compatible with EU6.2-spec or Brazil/China-market vehicles
Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 2026 | Ford | Mustang | GT |
| 2026 | Ford | Mustang | Dark Horse |
Why this is the GT500 successor
We covered this kit in detail when Roush announced it — the engineering choices, the dyno comparison, where it lands vs. the outgoing GT500.
FFP Blog2026 Ford Mustang Dark Horse SC: The GT500 Successor We’ve Been Waiting For
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