Roush 2024-2026 Ford Mustang GT/ Darkhorse Phase 1 Supercharger – 740HP
or as low as $832.92/mo with Affirm
Available
1The 740HP Phase 1 — S650 Entry Tier
740 horsepower from the S650 Coyote with the same hardware platform that powers the 810HP Phase 2 — just a larger 90mm pulley dialing back the boost for a calmer power delivery and entry pricing on the family. Eaton TVS R2650 dual-front-inlet supercharger, dual high-efficiency intercoolers, Roush Red head unit, all the same engineering. CARB-certified for all 50 states. WHILE SUPPLIES LAST — Roush has labeled this kit limited inventory. Tested at the strip: 10.55 second 1/4 mile @ 133 MPH, 0-60 in 3.00 seconds.
2By the Numbers
Stock 2024-2026 Mustang GT 5.0L: 480 HP / 415 lb-ft. 90mm pulley vs Phase 2’s 84mm = less boost, lower peak HP, broader torque curve.
3Inside The Kit
4Cooling + Fuel — Same Hardware as Phase 2
Phase 1 ships with the same oversized front heat exchanger, custom degas bottle, high-flow Bosch PCE intercooler pump, dual-cone fuel injectors, and custom billet fuel rails as the Phase 2. The cooling and fuel systems are over-spec’d for 740 HP — meaning consistent power delivery on extended pulls and headroom for future upgrade to Phase 2’s smaller pulley if you ever want the additional boost. Vehicle max speed unchanged from production.
5Track Data
📄 Download Phase 1 Install Manual (PDF)
Roush in-house testing on 10R80 automatic, 3.55 rear gear, prepped track with slicks. ~0.22 seconds slower in the 1/4 vs Phase 2 (10.33s) for $0 less — entry-tier value.
6Compliance — 50-State Legal
7Fitment
| Year | Make | Model | Engine | Trans |
|---|---|---|---|---|
| 2024 | Ford | Mustang GT / Dark Horse | 5.0L V8 Coyote | Manual + 10R80 Auto |
| 2025 | Ford | Mustang GT / Dark Horse | 5.0L V8 Coyote | Manual + 10R80 Auto |
| 2026 | Ford | Mustang GT / Dark Horse | 5.0L V8 Coyote | Manual + 10R80 Auto |
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