Hellcat-Powered 2018 Wrangler Unlimited Rubicon 4x4 Redefines American Capability
25 November 2025 by Signature Autosports, USA

Created as a one-off specialty build, this Hellcat-powered 2018 Jeep Wrangler Unlimited Rubicon 4x4 embodies everything Signature Autosports stands for—purpose-driven engineering, refined craftsmanship, and unmistakable presence. Born from the foundation of a factory Rubicon equipped with leather-trimmed bucket seats, a body-color three-piece hardtop, and Jeep’s most capable off-road hardware, it has been transformed into a supercharged expression of American muscle and off-road mastery.

Anchored by a 6.2-liter Supercharged Hellcat V8 and supported by the Rubicon’s legendary hardware—electronic sway-bar disconnect, Tru-Lok locking differentials, and 4x4 capability—this build merges factory pedigree with extreme performance.

PERFORMANCE, PERFECTED

At the center of this transformation lies the iconic 6.2-liter Hellcat Supercharged V8, delivering 707+ horsepower and 650+ lb-ft of torque—a staggering leap beyond the stock ERB 3.6-liter V6 the vehicle originally carried. Power is channeled through a high-capacity automatic transmission, calibrated for the demands of the supercharged engine, feeding the Rubicon’s 4:10 low-range gearing, electronic sway bar disconnect, and selectable four-wheel drive.

A performance-enhanced cooling system, paired with heavy-duty engine oil cooler, radiator upgrades, and dual electric fans, ensures relentless capability on desert runs, mountain climbs, or daily street use. The stainless dual-outlet exhaust delivers a deep, commanding soundtrack befitting the Hellcat lineage.

The under side features a Class II receiver hitch and transfer case skid plate shielding—pairs seamlessly with the elevated power. The Jeep rides on its 20-inch FUEL Mineral Gray wheels wrapped with Nitto Ridge Grappler off-road tires , meeting the ground with authentic Rubicon confidence.

DESIGN THAT DEFINES

Finished in Black Clear Coat with body-color fender flares and a matching body-color 3-piece hardtop, this Hellcat Rubicon strikes a muscular yet refined stance. Factory fog lamps, LED reflector headlights, black front and rear bumpers, and accent overlay trim preserve its iconic silhouette while enhancing its presence.

A black grille, Trail Rated badging, Rubicon hood decals, and Wrangler Unlimited graphics reflect its heritage. The oversize spare tire carrier and matching Fuel Mineral Gray spare wheel complete the cohesive, rugged aesthetic.

High-durability skid plates for the fuel tank and transfer case, swing gate reinforcement, and robust tow hooks maintain the Jeep’s functional capability. Every detail—from hood insulation to the dual-note electric horns—retains the authentic factory foundation, elevated now by Hellcat power.

COMMAND AND COMFORT

Access the cabin to find Black/Dark Saddle leather-trimmed bucket seats, a defining aesthetic element of this build. Heated front seats, automatic temperature control, and the premium instrument cluster with tachometer elevate the driving experience.

A factory GPS Navigation system housed within the 6.5-inch Uconnect touchscreen offers intuitive control over multimedia, SiriusXM services, and Alpine 9-speaker audio with all-weather subwoofer. Steering wheel-mounted audio and voice commands bring modern connectivity to the classic Wrangler environment.

Bright interior accents, power windows with one-touch front down, universal auxiliary power outlets (12V and 115V), and the full complement of interior lighting create an environment of comfort and utility. Dynamat-style sound dampening (post-conversion) further enhances cabin refinement, balancing the Hellcat’s thunderous capability.

The body-color three-piece hardtop delivers year-round versatility, while the rear cargo area remains practical and ready for gear, travel, or adventure.

BUILD HIGHLIGHTS

• 6.2L Supercharged Hellcat V8 | 707+ hp & 650+ lb-ft
• High-capacity automatic transmission
• Upgraded cooling: radiator | fans | oil cooling
• Custom stainless dual-outlet exhaust
• Heavy-duty driveshafts
• Retained Rubicon 4x4 capability | Electronic Sway Bar Disconnect
• Black Clear Coat exterior
• Black/Dark Saddle leather-trimmed bucket seats
• Body-color 3-piece hardtop
• Electronic Sway Bar Disconnect
• AMP Research Electronic Folding Steps
• Tru-Lok Front & Rear Locking Differentials
• 4:1 Low Range | 4WD w/Heavy-Duty Transfer Case Skid Plate
• Black front & rear bumpers
• 20" Nitto Ridge Grapplers
• 20" Mineral Gray Fuel Offroad Wheels
• Alpine 9-Speaker Audio w/All-Weather Subwoofer

 • Falcon Front and Rear Shocks
• Uconnect 6.5" Display | Navigation
• Heated Front Seats
• Automatic Temperature Control
• LED Fog Lamps | LED Reflector Headlamps
• Tow Hooks | Class II Receiver Hitch
• Fuel Tank & Transfer Case Skid Plate Shields
• 22.5-Gallon Fuel Tank
• Leather-Wrapped Steering Wheel
• SiriusXM Radio + 5-Year Travel Link
• Vehicle Information Center
• Premium Instrument Cluster w/Tachometer
• Rear Window Wiper/Washer
• Body-color grille | Rubicon badging

… and much more.

HERITAGE. POWER. PURPOSE.

Every Signature Autosports build is more than the sum of its parts—it’s a philosophy realized in steel, leather, and precision engineering. This Hellcat-Supercharged Wrangler Unlimited Rubicon embodies that ethos: American muscle blended with factory Rubicon capability, handcrafted detail, and an unmistakable presence that commands every street, summit, and desert trail.

CONTACT US
For more information or to schedule a personalized FaceTime® walk-around, call or text +1 (910) 632-0260, or email the Signature team. Nationwide shipping is available—and depending on location, personal delivery can be arranged.

Visit us in Castle Hayne, North Carolina—just five miles from Wilmington International Airport (ILM)—to experience the 2018 Jeep Wrangler Hellcat-Powered Unlimited 4x4 in person— then DRIVE IT HOME!

Thanks for looking… and have a great day!

Year: 2018

Miles: 32,116

VIN: 1C4HJWFG6JL800275

Stock #: 800275A

Price: $99,950 USD