2026 MUSTANG RTR SPEC 5
THE 2026 RTR SPEC 5
The most capable Mustang RTR ever produced — limited to 50 units within the US for the 2026 model year. The 2026 Mustang RTR Spec 5 is the ultimate expression of what RTR stands for.
It’s the result of more than 15 years of pushing design, engineering, and performance further than ever before. This isn’t about chasing our peers or repeating what’s been done before — the Spec 5 is born straight from our core DNA. Every curve, every component, and every ounce of power is built to embody what it means to be Ready to Rock™. This is the most capable and modern, yet aggressive, Mustang RTR® ever offered, created for those who demand the absolute best.
The 2026 Spec 5 introduces the next evolution of RTR’s Widebody System. These aren’t bolt-on flares; this is a fully integrated system that redefines what a widebody Mustang should be. Each component has been meticulously engineered to flow seamlessly to complement the Mustang’s body lines. All mounting points are hidden beneath the surface, eliminating exterior hardware from being seen. The result is a precise fit and finish so refined that it looks as if it rolled straight off the assembly line this way.
BUILD YOURS NOW
COMPONENTS & PRICING
The 2026 Mustang RTR Spec 5 starts at $159,999, which includes the base Mustang GT 401A with Performance Package.
Note: This vehicle is not available for sale in the State of California
Powertrain Components
- 870+ HP and 660 LB.-FT. TQ 3.0-liter Whipple Stage 2 Supercharger System and HD Race Intercooler System
- RTR by BORLA Cat-Back Active Exhaust System
Widebody System Components
RTR Composite Widebody System Components
- Composite Widebody Front Fenders
- Composite Front Bumper Extensions
- Composite Upper Rocker Panels
- Composite Widebody Rear Quarter Panels with Integrated Tire Cooling Vents
- Felt Front Fender Liners
- Composite Rear Wheel Arches with Tire Cooling Ducts
- Bespoke Fuel Door with Vertical Over-Center Motion
RTR Exposed Carbon Widebody System Components
- RTR Carbon Fiber Chin Splitter
- RTR Carbon Fiber Wake Tower Assemblies (Front and Rear)
- RTR Carbon Fiber Rocker Splitters
- RTR Carbon Fiber Rear Quarter Splitters
Exterior Components
- RTR Extended Color Palette Standard Paint Option
- RTR Upper Grille with LED Air Intakes
- RTR Lower Grille
- RTR Corner Grilles
- RTR Undertray Extension
- RTR Hood Vent
- RTR Decklid Spoiler
- RTR Exterior Badging including RTR Grille Badge, “Spec 5” Brushed Grille Badge, RTR Brushed Front Wake Tower Badges, & RTR Decklid Badge
- RTR Extended Speed Block Graphics Package
- RTR Windshield Banner
Wheels, Tires & Suspension Components
- RTR Tactical Performance Adjustable Coilover Suspension System
- RTR Tactical Performance Adjustable Sway Bars (Front & Rear)
- Two-Piece Front Rotors
- RTR 20-inch Aero 5 Evo Forged Aluminum Wheels available in Forged Charcoal, Podium Champagne or Vapor Silver
- Michelin Pilot Sport 4S Tires (305/30/R20 Front and 315/30/R20 Rear)
- Lug Nut Kit & TPMS
Interior Components
- Serialized Dash Plaque Engraved with Vaughn Gittin Jr.’s Signature
- RTR Performance Shift Knob (Automatic or Manual)
- RTR Leather Covered RECARO Sport Seats
- RTR Floor Mats
Additional Components
- RTR Key Fob Clamshell
- RTR Puddle Lamps
- Motorcraft 5W-50 Full Synthetic Oil Change (10 quarts)
- Certificate of Authenticity
- 3 Year/36,000 Mile Warranty
Optional Upgrades:
- Premium Paint – $7,500
- Paint-to-Sample – $15,000
- RTR QuickFit Pro Harnesses (Driver & Passenger) – $1,199
UNDERNEATH THE HOOD
Under the hood is a supercharged 5.0L V8 paired with a 3.0L Stage 2 Whipple Supercharger System that produces over 870+ horsepower and 660 lb-ft of torque. An HD Race Intercooler keeps things cool under extreme conditions, while the RTR by BORLA Cat-Back Active Exhaust System — meticulously tuned to perfection by Vaughn Gittin Jr. — delivers a sound that hits just as hard as the power it unleashes. Spec 5 can be optioned with a 6-speed manual or a 10-speed automatic transmission. Either way, you’re in command of a machine that was built to thrill.
Powertrain Components
- 870+ HP and 660 LB.-FT. TQ 3.0-liter Whipple Stage 2 Supercharger System and HD Race Intercooler System
- RTR by BORLA Cat-Back Active Exhaust System
WHEELS
The brand-new RTR Aero 5 Evo Forged Wheels are a bold evolution of our Aero 5 wheel design. Available in Forged Charcoal, Podium Champagne, and Vapor Silver, these forged aluminum wheels feature lightning pockets, paint-matched machined center caps, and a stance that demands your attention. Michelin Pilot Sport 4S tires—305/30R20 on a 10.5-inch wide wheel in the front and a 315/30R20 on an 11-inch wide wheel in the rear—maximize grip and everyday drivability.
Braking power is provided by Brembo 6-piston front and 4-piston rear calipers, paired with upgraded 2-piece front rotors for increased braking performance.
PERSONALIZATION WITHOUT LIMITS
Every Mustang RTR Spec 5 owner has the opportunity to personalize their vehicle with a standard color from the RTR Extended Color Palette, included in the base price, or elevate it with premium and paint-to-sample options for a truly bespoke finish.
As part of the experience, each owner receives a render of their Spec 5 showcasing their chosen exterior color alongside the three available wheel finishes. For paint-to-sample selections, RTR also provides a custom render and a physical speed shape painted in the selected color for final approval, making the customization process every bit as thrilling as the performance it delivers.
Exclusive to the Spec 5 is the new Extended Speed Block Graphics Package, blending inspiration from RTR’s Formula Drift Spec 5-FD Mustangs with pinstripe fade design printed on the vinyl that is inspired by Creative Director Lindsay Ross’ hand-drawn sketches. Combined with brushed exterior badging on the grille and front carbon fiber wake towers, these details push the Spec 5’s modern, aggressive identity even further.
ORDER YOUR RTR SPEC 5 HERE:
Connect With Us