Supercharged 2021 Jeep Gladiator Sport 6-Speed Auctioned on Bring a Trailer

Modified Gladiator with Magnuson supercharger, Banks intake, and Rubicon suspension up for auction

Published on Feb. 16, 2026

This 2021 Jeep Gladiator Sport was purchased new by the seller and subsequently modified with a Magnuson supercharger, Banks Power intake system, and Rubicon suspension. The truck has 30,000 miles, a six-speed manual transmission, and is finished in Sting-Gray over black cloth upholstery. It is being auctioned on Bring a Trailer.

Why it matters

The Jeep Gladiator is a popular off-road-focused midsize truck, and this modified example with a supercharger and upgraded suspension components offers enhanced performance and capability. Auctions on Bring a Trailer often feature unique and desirable vehicles that can provide insights into the enthusiast market.

The details

The Gladiator features a black removable three-piece Freedom Top hardtop, 17-inch alloy wheels with 285/70 Falken Wildpeak tires, and Fox suspension components. The interior includes black cloth upholstery, air conditioning, cruise control, and a UConnect 3 infotainment system. The 3.6-liter V6 engine has been modified with a Magnuson supercharger and Banks Power intake system.

  • The Magnuson supercharger and Banks intake were installed in December 2023 and 2025, respectively.
  • The clutch was replaced under warranty due to a manufacturer recall in August 2024.
  • The oil was changed in March 2025, and the fuel pump was replaced two months later.

The players

Bring a Trailer

An online auction platform that specializes in vintage and classic cars.

Magnuson

A manufacturer of automotive supercharger systems.

Banks Power

A company that produces performance-enhancing products for vehicles, including air intake systems.

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What’s next

Interested buyers can place bids on the Bring a Trailer auction for this modified 2021 Jeep Gladiator Sport.

The takeaway

This supercharged and upgraded Jeep Gladiator Sport showcases the potential for enthusiasts to personalize and enhance the performance of their off-road-focused midsize trucks, catering to a growing market of buyers seeking more capable and powerful vehicles.