2026 RTR Mustang Spec 5: 870+ HP Supercharged Beast Limited to 50 Units

2026 RTR Mustang Spec 5: 870+ HP Supercharged Beast Limited to 50 Units

For over 15 years, RTR Vehicles has been a leader in Ford performance tuning, crafting aggressive, track-ready upgrades for Mustangs and Raptors alike. But its latest creation the Mustang RTR Spec 5 is easily its most ambitious project yet.

Built on the seventh-generation S650 platform, this isn’t just a modified muscle car. It’s a limited-edition, street-legal supercar that outmuscles even Ford’s own halo model the $325,000 Mustang GTD.

At the heart of the Spec 5 is Ford’s proven 5.0-liter Coyote V-8, but heavily transformed:

• 3.0L Whipple Stage 2 Supercharger for massive forced induction
• Heavy-Duty Race intercooler to keep intake temps low
• Performance cat-back exhaust system for deep, aggressive tone

The result? A staggering over 870 horsepower and 660 lb-ft of torque surpassing the GTD’s 815 hp and delivering brutal acceleration that redefines American muscle.

All that power can be harnessed via either:

• Tremec six-speed manual transmission
• Ford’s 10-speed automatic with paddle shifters

Either way, you’re getting one of the most powerful naturally aspirated-based Mustangs ever built.

RTR didn’t just add power it rebuilt the driving experience.

2026 RTR Mustang Spec 5: 870+ HP Supercharged Beast Limited to 50 Units

The Spec 5 rides on a fully upgraded Tactical Performance suspension system, engineered to deliver race-level handling without sacrificing daily drivability:

• 30-way adjustable front coilovers
• 30-way rear dampers
• Height-adjustable springs
• Adjustable front and rear sway bars

Despite being lowered, RTR claims no loss in suspension articulation making it capable on both canyon roads and race circuits.

This is RTR’s first complete body kit, marking a major evolution in design and aerodynamics:

• Composite front and rear fenders with integrated cooling vents
• Composite rocker panels and bumper extensions
• Aggressive new styling cues including aero corners and LED-lit grille intakes

Carbon-fiber components include:

• Front splitter
• Rocker splitters
• Rear quarter splitters
• Front and rear wake towers

Visual identity is further enhanced by:

• Decklid spoiler
• RTR-specific upper and lower grilles
• Customization options: choose from the RTR Extended Color Palette or go full bespoke with paint-to-sample

It’s wide, low, and unmistakably menacing.

2026 RTR Mustang Spec 5: 870+ HP Supercharged Beast Limited to 50 Units

To handle the added power and grip, RTR fits the Spec 5 with:

• 20-inch RTR Aero 5 Evo forged wheels:
• 10.5 inches wide (front)
• 11 inches wide (rear)
• Wrapped in high-grip Michelin Pilot Sport 4S tires

Stopping comes courtesy of Brembo:

• Six-piston front calipers
• Four-piston rear calipers
• Two-piece front rotors for fade resistance under hard use

It’s a braking system worthy of a supercar.

Inside, the cockpit blends performance and personalization:

• Recaro sport seats with:
• Cool grey bolsters
• Black suede inner supports
• Ribbed inserts for grip
• Electronic Drift Brake RTR’s signature party trick for controlled slides
• Dash plaque signed by Vaughn Gittin Jr., founder and professional drift driver
• RTR Performance shift knob for tactile gear changes

Every detail reinforces the car’s purpose: driving excitement above all else.

2026 RTR Mustang Spec 5: 870+ HP Supercharged Beast Limited to 50 Units

Production is strictly limited to just 50 units worldwide, making the Spec 5 an instant collector’s item.

Each starts at $159,999, which includes:

• A fully equipped 2026 Mustang GT with:
• 401A High-Performance Package
• Factory Performance Pack

RTR then transforms it into the Spec 5 with every upgrade listed above all backed by factory warranty support through participating Ford dealers.

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