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Diesel Mecca: Inside Fleece Performance Engineering’s New 70,000 Square-Foot Facility

From pole barn to concrete superstructure in 10 years, Fleece Performance Engineering exemplifies the ultimate American-made success story.

SUV King? Chevy Debuts 2021 Tahoe & Suburban with IRS, Duramax Diesel Option & More

The Full Size SUV segment heats up with full redesigns and new options for Chevy's two iconic models.

Outlaw Diesel Super Series: 2019 Season Recap

From nail-biting index races to 4-second Pro Mods, there was never a dull moment in diesel drag racing this year.

Diesel Milestones, 2019

From new drag race records to wild engine builds to more horsepower being made than ever before, diesel performance was alive and well in 2019.

Cummins Owner's Gift Guide: Stocking Stuffers

Looking for the perfect gift for the Cummins owner in your life? These budget-friendly must-haves are sure to light up their Christmas.

Domestic Diesels: A Year in Review

1,000 lb-ft diesels, 10-speed automatics, a fresh EcoDiesel bound for Jeeps and an inline-six Duramax in the half-ton market. It all happened in 2019.

Project Paw-Paw: Part 3

Our sleeper 7.3L build takes a turn toward serious with the addition of big hybrid injectors.

Project Paw-Paw: Part 2

Addressing the 7.3L Power Stroke’s known weak links before bolting on our power-adders in our quest for 600 rear-wheel horsepower.

How to Battle Rust in Your Home Garage

Don’t let rust send your car to an early grave. Fight back using these prevention and restoration tips.

Project Paw-Paw: Part 1

From cornfield-crawler to Mustang-mauler, we’re quadrupling the horsepower of this old-school Ford diesel.

1,300rwhp ‘Fummins or Z06 Corvette: Which One Would You Drive?

So which is it? A sleeper, four-wheel drive Super Duty making nearly 1,400 hp at the tires, or the ultimate factory production sports car?

Most Hated: GM’s 6.2L and 6.5L Diesels

Are the old GM diesels truly the boat anchors of the compression-ignition world? Yes and No. Here’s why.

Anatomy of a 5.90 Index Diesel Drag Truck

An inside look at what is quickly becoming one of the most entertaining drag racing classes in diesel: 5.90 Index.

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