Beaten, Abused, And Brand-New: DNR Customs Torture Tests The New Cummins
Inside: A first-look at the ’25 Ram, 2,100-plus hp on the chassis dyno, a 6.0L Power Stroke-swapped Lightning, and an easy 30hp gain for 6.7L Fords.
The Aftermarket Injector Return Line Fitting Every 6.7L Power Stroke Needs
Trade your 6.7L Power Stroke’s failure-prone, plastic injector return line fitting in for a heavy-duty aluminum, double O-ring sealed replacement from Fleece Performance Engineering.
Michael Brown’s Deck-plated, Compound Turbo, And Flux-Fueled Cummins
Two drag racers set their sights on deep 4’s, UCC prep goes full-steam ahead, and a look inside Denso HP4 high-pressure fuel pump failure.
Fitzgerald Performance Joins ODSS, Brings Diesel Drag Racing Back To Tennessee
Big news for the Outlaw Diesel Super Series, compression-ignition infiltrates the ranks of radial tire racing (again), a pair of must-see Cummins swaps, and we preview an EPIC 2025 pulling schedule.
Race To The Sand: Truck And Tractor Pulling From NFMS 2025
Four days at the largest indoor farm show in America. Four nights of the finest wintertime sled pulling in the world.
Complete Meltdown
Melted pistons, self-destructing CP4s, drag racers bound for Lights Out 16, and coverage from the indoor Super Bowl of truck and tractor pulling.
Blown Into Oblivion
Engine carnage, giant turbos, grudge racing, and last-minute prep for the biggest indoor tractor pull in America.
Big Compounds, Lightweight, And 5-Second 1/8-Mile’s
A look inside SICK Week, a pair of rear-wheel drive 6.70 Index racers with enough left under the hood to go 5’s, and a short word on counterfeit diesel products.
Improved Under Bed Filtration
Fleece Performance Engineering’s new primary fuel filter assembly means simpler, more affordable filter changes for your ’17-’24 Ford.
Are Ultra-Clean OBS Fords Worth $70K?!
Classic diesel repowers, the high-dollar, mint condition OBS Ford craze continues, and the abolishment of EV mandates.
Rags To Riches
L5P Duramax-powered, Allison 10L1000-shifted and MoTeC controlled. Keith Porter’s tire-shredding, 2,800-pound hot-rod proves anything is possible in the diesel industry.
Collapsed Lifters—The Fifth-Gen Failure Your Cummins Doesn’t Deserve
The inside scoop on Cummins lifter failure, a stand-alone VP44 controller, a Texas drag racer heads to Europe, and the latest mega-sized turbo for the racing scene.
The 2025 Ram Arrives—With A Completely Revamped Cummins
The latest on the 2025 Ram powertrain, indoor truck pulling from Indiana, a 5.0L Cummins C10 for sale, and a violent CP4 failure.
2024 Record Setters: Landmarks From The ‘Strip, Dyno, And Salt
The year that saw diesel’s first-ever 5-second quarter-mile pass, countless 3-second eighth-miles, 315 mph on the salt, and a new diesel door car record.
Modern Diesel Drag Racing, Summed Up In A Picture…
Fortifying the 48RE, wintertime truck and tractor pulling in Kentucky, Ford recalls nearly 300,000 Super Duty’s, and Rod MacMaster’s radial-tire Corvette receives its billet-aluminum Cummins.
Can A 6.4L Puller Succeed In The 3.0 Class?
Firepunk’s 2024 dyno kings, the 6.4L Power Stroke that could, a 4-million-mile 3408 Cat, and Daimler Truck invests $285 million in Detroit Diesel.
Christmas Carnage For A Pair Of Duramax-powered Hot Rods
Two LB7’s self-destruct, DHD looks to hire a Duramax builder, and Hot Shot’s Secret partners with Pro Pulling League for 2025.
The Duramax: 25 Years Later
A quarter of a century ago, GM announced plans to introduce the 6.6L Duramax we’ve all come to know and love.
PRI 2024: Once Again, Diesel Performance Makes A Statement
Billet engines and turbos, high-rpm fueling, cutting-edge electronics, and the fastest oil-burners in the world…the diesel industry arrives in force at the 2024 PRI Tradeshow.
A Wild Week In Indy
The latest in turbo, fuel system, electronics, and engine technology from the PRI Show, 2025 race prep, and the importance of CCV filter replacement.
It’s PRI Week
Get all the details on the revamped 6.7L Cummins, the PRI Show, and the trials and tribulations of Ring Racing’s small-tire Pro 275 endeavor.
A Performance-Friendly Sending Unit For 7.3L & 6.0L Power Strokes
Eliminate aeration, draw straw, and old-age issues with Fleece Performance Engineering’s new SureFlo sending unit for ’99-’07 Fords.
TSD’s Flagship F-350 Gets A Billet-Aluminum Cummins And IFS?!
One-of-a-kind Cummins swaps, a P-pumped 7.3L Power Stroke for sale, and Megatron earns its third straight PPL title.
The Fastest Pro Street Diesel Ever Built—Could Be Yours
5.9L Cummins and IH DT360 conversions, the fastest Pro Street diesel in history goes up for sale, and the latest airflow improvements for your Power Stroke.
Did America Just Dodge A Bullet?
Following a landslide victory on election night, the Trump administration has promised to stomp out the federal government’s EV mandates.
The Fastest Diesels In The World Are Coming…
The ODSS releases its 2025 race schedule, an L5P Duramax squeezes 832 hp through a 66mm VGT, a drag racer visits the hub dyno, and GM issues a massive recall.
The First 5-second Quarter-Mile Diesel
This week, we bring you the world’s first 5-second diesel (a Duramax), the billet Cummins engines behind Scheid Diesel’s truck pulling championships, and the best way to confirm CP4 failure on the 6.7L Power Stroke.
The Holler Hooker
A brothers-built, 6.7L Power Stroke puller that’s intended to run neck-and-neck with the best in the business.
Rising From The Ashes—Rod MacMaster’s 3,500 HP Corvette Returns
Rod MacMaster’s resurrected Corvette heads back to the track, all-night truck pulling from DIDC, and a gold-plated, 1,700hp third-gen is poised to captivate at SEMA.
Averting Catastrophe With S&S Diesel Motorsport’s CP4 Disaster Prevention Kit
You can’t keep your 6.7L Power Stroke’s CP4 from self-destructing—but you can ensure it doesn’t wreck the entire fuel system if it does.