800-Horsepower 2017 GMC Sierra 2500HD Denali

$100,000

Make

GMC

Engine

-

Model

Sierra

Drivetrain

4×4

Odometer

96,000

Transmission

automatic

VIN / Chassis #

1GT12UEY7HF112386

Location

Gaston, SC

Seller

private party

Fuel Type

gasoline
Offered for sale out of Gaston, South Carolina, this 2017 GMC Sierra 2500HD Denali pairs its factory luxury features with a professionally built drivetrain and purpose-driven modifications. Finished in Stone Blue Metallic over a refined interior with Oblique Hanon Oak Wood Tone trim and camouflage seat covers, it's powered by a 6.6L L5P Duramax diesel V8 mated to a Suncoast 1000hp transmission and a custom twin-turbo setup-one of only ten systems built for this platform. It rides on a Cognito lift kit with Fox shocks and rolls on 22" Fuel Avenger wheels wrapped in 35" Nitto tires. A full-featured Warn winch, Fab Fours armor, Diamondback HD bed cover, and B&W gooseneck hitch make it ready for work and play, while a $15K integrated stereo system and 10" Stinger touchscreen raise the bar for in-cabin tech. 

The truck is being sold with a clean title in the seller's name and a clean CARFAX confirming two-owner, accident-free history. 

  • Powertrain: Twin-Turbo L5P Duramax with Built SunCoast Transmission This Denali's 6.6L L5P Duramax V8 is fitted with one of only 10 custom twin-turbo kits ever built for the platform, paired with a tuned ECM to deliver an estimated 800 horsepower. A brand-new SunCoast 1000HP-rated transmission (with fewer than 100 miles) handles the power, backed by a 62-gallon S&B tank and Warn 16K synthetic winch to match real-world readiness with show-stopping force.
  • Exterior: Cognito Lift, Fab Fours Bumpers, and Diamondback Armor Finished in Stone Blue Metallic, the exterior is fitted with Cognito suspension, Fab Fours "Grumper" and rear bumper (both freshly repainted), AMP power steps, and 22" Fuel Avenger wheels wrapped in 35" Nitto rubber. Front and rear Rigid LED lighting, Factor 55 recovery gear, a headache rack, and a B&W gooseneck hitch round out this ultra-capable exterior package.
  • Interior: Camouflage Covers, Hanon Oak Accents, and Custom-Tuned Audio The cab features camouflage seat covers over factory Denali seats, Hanon Oak woodgrain trim, and a full cabin sound-deadening treatment. A 10" Stinger touchscreen paired with a custom-tuned audio system and digital processor is fully integrated with factory functions-delivering a $15,000 listening experience that doesn't compromise OEM utility.
  • Proven Ownership & Title Status: This truck comes with a clean South Carolina title in the seller's name and a clean two-owner CARFAX with no accidents or mileage discrepancies. It has been properly maintained, garage-kept, and stored under cover while in regular use.
This isn't your typical L5P Duramax build. With its rare twin-turbo setup, luxury-level refinement, and long-range utility thanks to the oversized fuel tank and gooseneck hitch, this truck is ready for the work site, the show circuit, or the open road. Between the custom stereo, 1000HP-capable transmission, premium suspension, and clean documentation, it's an ideal choice for anyone seeking a unique and well-executed heavy-duty diesel.

Powertrain
  • 6.6L L5P Duramax V8 Diesel
  • Custom-built twin-turbo system (1 of 10 made)
  • Tuned ECM (estimated 800 horsepower)
  • SunCoast 1000HP automatic transmission (<100 miles)
  • 62-gallon S&B oversized fuel tank
  • B&W gooseneck hitch
  • Warn 16K synthetic winch
  • Factor 55 UltraHook & shackles
Suspension, Wheels & Tires
  • Cognito lift kit
  • Fox shocks
  • 22" Fuel Avenger wheels
  • 35" Nitto tires
Exterior Features & Modifications
  • Stone Blue Metallic paint
  • Fab Fours Grumper front bumper (repainted)
  • Fab Fours rear bumper (repainted)
  • Diamondback HD bed cover
  • Headache rack
  • AMP Research automatic running boards
  • Front and rear Rigid Industries LED lighting
  • 5% window tint
  • Pre-wired for Passport radar detector
Interior Features & Modifications
  • Denali trim with Oblique Hanon Oak woodgrain accents
  • Camouflage seat covers
  • Fully sound-deadened cab
  • Custom-tuned stereo system with DSP
  • 10" Stinger touchscreen
  • Pre-wired radar detector setup

Contact Seller

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