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The 2024 Mustang S650 has arrived, and while the Gen 4 Coyote engine is a masterpiece of engineering, there is always room for more. For the modern muscle enthusiast, "stock" is just a starting point. If you want to transform your S650 from a street car into a world-beater, you need a forced induction solution that delivers reliability, streetability, and massive power.

In the world of mustang performance parts, two names dominate the conversation: Roush and Whipple. Both manufacturers have released specialized s650 supercharger kits designed to work with the new dual-intake architecture of the 2024 Mustang GT.

Choosing between them isn't just about the numbers on a dyno sheet: it’s about how you use your car, your budget, and your long-term goals. At DTX Performance, we believe in building cars that dominate the street and the track. Here is the definitive breakdown of the Whipple vs. Roush showdown.

Roush Performance: The OEM+ Powerhouse

Roush has a long-standing relationship with Ford, and that "factory-backed" feel is the hallmark of their supercharger systems. For the S650, Roush offers a Phase 1 and a Phase 2 kit, both utilizing the proven TVS R2650 technology.

Roush Phase 1 & 2 Specs

• Unit: TVS R2650 (2.65L) Roots-style blower.
• Output (Phase 1): 740 hp / 590 lb-ft (Crank).
• Output (Phase 2): 810 hp / 630 lb-ft (Crank).
• Technology: Inverted design with dual intercoolers to manage heat soak during back-to-back pulls.

The Roush kit is designed for the owner who wants a "sleeper" experience under the hood. It utilizes stock-style airboxes and dual 80mm throttle bodies, maintaining an incredibly clean, factory look.

The Roush Advantage: Warranty and Reliability The biggest selling point for Roush is the warranty. When installed by a Ford dealer or an ASE-certified technician, the Roush kit can be bundled with a powertrain warranty. For many 2024 S650 owners, protecting a brand-new vehicle is the top priority. The calibration is conservative, focusing on smooth power delivery rather than absolute peak numbers.

Alt text: Under-hood view of a 2024 Mustang GT with a Roush Phase 2 supercharger kit installed, showing the dual-intake integration and factory-style finish.

Whipple Superchargers: The King of the Hill

If Roush is about factory integration, Whipple is about raw, unapologetic performance. Whipple’s Gen 6 3.0L twin-screw system is larger than the Roush unit, and that extra displacement makes a massive difference when you start turning up the heat.

Whipple Stage 1 & 2 Specs

• Unit: Gen 6 3.0L Twin-Screw Supercharger.
• Output (Stage 2): 810 hp / 640 lb-ft (Crank) on 93 Octane.
• Real-World WHP: While crank ratings are similar to Roush, the Whipple typically puts down more power at the wheels: often seeing 730–760 whp in Stage 2 configurations.
• Efficiency: The twin-screw design is exceptionally efficient, requiring less power to turn the rotors at high RPMs compared to traditional roots blowers.

The Whipple Advantage: Ceiling for Growth Whipple systems are built for the enthusiast who plans to keep modding. While the CARB-legal calibration is safe and powerful, the 3.0L blower has enough headroom to support 900+ whp if you eventually decide to move to E85, smaller pulleys, and custom tuning.

Performance Comparison: The Dyno Duel

When you look at the numbers, both kits claim 810 horsepower at the crank for their top-tier street packages. However, the delivery is where they differ.

1. Low-End Torque: The Roush TVS blower provides instant, neck-snapping torque right off the line. It feels incredibly punchy in stop-and-go traffic and low-speed roll racing.
2. Top-End Pull: The Whipple’s larger 3.0L displacement allows it to breathe better at high RPMs. On a long drag strip or a half-mile event, the Whipple usually pulls away from the Roush.
3. Heat Management: Roush uses a sophisticated dual-intercooler setup that is excellent for consistent street use. Whipple counters with a massive oversized heat exchanger and high-flow intercooler pump. Both manage heat well, but Whipple’s larger plenum volume gives it a slight edge in cooling the air charge at high boost levels.

Alt text: Kooks 1-7/8 Stainless Headers for 2015-2026 Mustang GT 5.0L, a critical upgrade for maximizing supercharger performance by reducing exhaust backpressure.

Installation and Calibration: What You Need to Know

Installing a supercharger on an S650 is not a weekend project for a beginner. It involves significant disassembly of the cooling system and the intake manifold.

• Tuning: Both Whipple and Roush include a "canned" tune (calibration) that you load via a device included in the kit. Roush’s tune is notoriously "safe," which is great for longevity but can feel slightly held back. Whipple’s calibration feels a bit more aggressive.
• Complexity: The S650's dual-path air intake adds a layer of complexity to these installs. Both kits handle this well, but the Roush kit’s use of factory airboxes makes for a slightly more straightforward fitment in the engine bay.

Stopping the Power: Critical Upgrades

Adding 300+ horsepower to your Mustang is a thrill, but you have to be able to stop that mass. The factory GT brakes are good, but they weren't designed for 800-horsepower repeated stops. At DTX Performance, we always recommend upgrading your rotors and pads when you go forced induction.

Check out our high-performance brake options to ensure your S650 stays on the road:

• EBC S9 Brake Pad and Rotor Kit - Performance Series
• EBC S9 Brake Pad and Rotor Kit - High-Performance Street
• EBC S9 Brake Pad and Rotor Kit - Ultimate Stopping Power

The Sound of Speed: Exhaust Considerations

A supercharger changes the harmonic profile of the Coyote engine. To truly unlock the sound (and the flow) of your supercharged S650, a cat-back exhaust is mandatory.

Alt text: Stainless Works Legend Series Cat-Back Exhaust for Mustang GT with X-Pipe and Quad Tips, designed to handle the high-flow requirements of supercharged engines.

Reducing backpressure is vital for supercharged engines. The more air you force in, the more air you need to get out. Systems like the AWE Touring Edition provide the perfect balance of a deep, aggressive growl without the highway drone.

Price Breakdown: The Bottom Line

Performance isn't cheap, but in the world of modern muscle, it’s a high-value investment.

• Roush Phase 2: Expect to pay between $10,000 and $11,000 for the kit alone. Installation at a Ford dealer can add another $2,500 to $4,000 depending on labor rates and warranty registration fees.
• Whipple Stage 2: These kits typically retail between $9,000 and $10,500. Installation costs at an independent performance shop are usually slightly lower than dealer rates, but you don't get the same factory-integrated warranty.

When you factor in supporting mods like headers and cooling upgrades, most S650 owners should budget roughly $14,000 to $16,000 for a fully "done" supercharger transformation.

Which Should You Choose?

The decision between Whipple and Roush comes down to your "Modern Muscle" philosophy.

Select Roush if:

• You want the security of a powertrain warranty.
• You value an OEM-style look and feel.
• The car is a daily driver that will likely stay at the 810 hp level forever.
• You need 50-state CARB legality for strict emissions testing.

Select Whipple if:

• You want the highest possible wheel horsepower on pump gas.
• You plan to upgrade the car further (E85, smaller pulleys, custom tunes).
• You prioritize top-end performance and drag strip dominance.
• You want that iconic "Whipple Whine" that only a twin-screw can provide.

Alt text: Comparison infographic showing the power curves of a Roush vs. Whipple supercharged S650 Mustang, highlighting the differences in peak torque and horsepower.

Build Your Dream S650 at DTX Performance

At DTX Performance, we don’t just sell parts; we build legends. Whether you choose the factory refinement of Roush or the raw power of Whipple, we have the supporting mustang performance parts to complete your build. From suspension kits to high-performance braking systems, we ensure your Mustang handles the power you’re putting down.

Shop with Confidence. We promise to only send you the best gear for your modern muscle car. If you’re ready to take your S650 to the next level, explore our full catalog today.

Push the limits. Build for power. Select DTX Performance.