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Engine Tuning

Four Wheeler’s Engine Technical Articles section showcases hands-on customization and installation of products and accessories designed to improve the performance and function of your truck or SUV’s engine.

4x4 Truck & SUV Engine Tuning

Putting The Easy EFI Swap To The Test
One Day EFI more
Keeping Your Cool: Cooling System Tech
We Keep You Out Of Hot Water more
Every Ford 6.0L Power Stroke Diesel Issue Solved
Power Stroke Problems more
The Most Common Bolt On Power Adders
How Much Improvement Can You Really Expect? more
Oil Filter Comparison: Filter Fodder
Are You Killing Your Engine With A Crappy Filter? more
LS Engines: Dream Swap Or Nightmare?
A look at what’s really involved in swapping an LS engine in place of your old mill more
High-Clearance Jeep Wrangler JK Exhaust
Moving Forward more
The Ford Three-Valve Broken Spark Plug Blues
How To Avoid A Heart-Stopping Repair Bill For A Maintenance Item more
Ford Power Stroke Bulletproofing Tactics
Part 2: How To Make A 6.0L More Powerful While Maintaining Reliability more
Ford Power Stroke Bulletproofing Tactics
Part 1: What It Takes To Make A 6.0L Reliable more
Toyota Tundra Magnaflow After Cat Exhaust
Power Flow more
Dodge Ram 2500 Flex-A-Lite Dual Electric Fan Kit
Cool Down, Power Up more
Magnaflow After-Cat Exhaust
Better Flow more
Engine Swap Kit Buyer's Guide
Bolt-In Power Solutions more
Your Engine's Other Lifeblood
The What And Why Of Coolant Analysis more
Headers: The Long & Short Of Them
Testing Short Vs. Long Tube Headers more
Swap Fever
A Tale Of Swapping One Diesel For Another more
Hemi Hysterics
7.0 liters of Hemi goodness for the JK Wrangler more
Powerplay // Jeep 4.0 Upgrades
A Jeep 4.0L Wrenching Session With Noticeable Results more
The Lowdown On SVO Conversions
You've heard all about it - What you need to know before you convert. more
Stover's Stroker - Trick Flow High Performance Heads
Part 3: Assembling Our Top End more
Stover's Stroker
Part 2: Building Big Horsepower For The Superburb more
Dura Maximus // Duramax Power Upgrades
How To Get 500 HP And 1,000 LB-FT Of Torque From Gm's Oil-Burner more
Inside The Inline: Part 2
Building Jeep's 4.0L Six more
Fuel Savings: Fact Or Myth?
From intake to internals, we examine a slew of bolt-on engine products to see if their claims of better mileage are true more

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Technical Articles by Category

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Blogs
Insider Outlooks

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Forums
Community Voices

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