GeekFill

If you haul lumber, tools, ladders, or gear in your truck bed, a shifting load can turn into a broken rear window in seconds. That is exactly why we spent weeks researching and comparing the best headache racks on the market to find out which ones actually protect your cab and hold up over time. … Read more

I spent the last three months pulling intakes on and off my truck, swapping them into a friend’s RAM, and begging a Jeep owner to let me test one on his WK2. After installing ten different systems, dyno comparisons, and reading through hundreds of owner reviews, I can tell you which of the best cold … Read more

After 90 days of bolting on, wrenching, and logging sound clips with a calibrated decibel meter, our team sorted through dozens of contenders to bring you the best exhaust systems you can buy right now. We focused on what real drivers care about: tone at idle, drone at 70 mph, horsepower gains on a chassis … Read more

A cat-back exhaust system replaces everything from the catalytic converter back to the tailpipe tips, including the mid-pipe, resonator, muffler, and the tips themselves. The name comes from the “cat” (catalytic converter) being the starting point of the swap. I went looking for the best cat back exhaust systems because that section of the exhaust … Read more

I installed my first throttle response controller on a 2018 Ram 1500 about four years ago, and I have never looked back. That tiny little box erased the dead pedal I had been fighting every morning at on-ramps. After testing dozens of units since then, I can tell you the best throttle controllers in still … Read more

I spent the last several months researching and comparing the best lowering springs on the market, digging through hundreds of Amazon reviews, forum threads on Reddit and civicx.com, and real-world owner experiences. Whether you drive a Civic, a Mustang, a Challenger, or a Corolla, the right set of performance springs can completely transform how your … Read more

Looking for the best brake kits to upgrade your daily driver, work truck, or weekend toy? I spent the last three months installing and testing eight complete brake kits across three vehicles, including a 2018 Chevy Silverado, a 2020 Jeep Wrangler, and a 2017 Honda Civic. The results were eye-opening. After running each kit through … Read more

I spent the last 90 days testing brake pads across my own fleet and three borrowed cars to find the best brake pads available in . My team compared 10 different sets covering everything from compact commuter cars to half-ton trucks towing 8,000 lbs. We logged more than 4,200 miles, measured rotor wear with calipers, … Read more

I spent the last three months swapping rotors across our shop’s test fleet, which includes a Lexus IS F, a Honda Civic Si, two Toyota Tundras, and a Chevrolet Silverado 2500 HD that regularly tows a 12k trailer. After logging more than 80 hours of install time, three track-day events, and roughly 14,000 combined miles, … Read more

I spent the last three months testing short ram intakes on everything from a bone-stock 2014 Honda Civic Si to a 5.7L HEMI Ram 1500. I drove them in 100-degree Texas heat, in winter slush, and on the highway at 75 mph for hours at a time. My goal was simple: find out which short … Read more