Samantha Reed

Nerf flywheels are the spinning wheels inside flywheel blasters that grip and launch foam darts at high speed. Upgrading the stock plastic wheels to aftermarket metal, POM, or precision-machined options boosts range, accuracy, and rate of fire more than any other single mod you can do. Two counter-rotating flywheels grip a foam dart between them; … Read more

I still remember the first time a dual mass flywheel bit me. It was a 2007 VW GTI with 94,000 miles on it. The clutch started slipping on the highway, and the shop quoted me for both a clutch kit and a new flywheel. I had no idea what a DMF even was. After 30 … Read more

A failing transmission mount can quietly drain drivetrain life out of any car. We have been chasing clunks, vibrations, and sloppy shifts for years across our shop and personal builds, and the best transmission mounts consistently solve issues that owners have tolerated for far too long. In this guide, our team breaks down eight aftermarket … Read more

Your fuel filter is the cheapest insurance policy on your engine, and it is also the one most people forget to change. We have spent the past three months testing and researching the best fuel filters on the market, pulling real-world feedback from forums like BobIsTheOilGuy, Powerstroke.org, and CumminsForum, and confirming specs against OEM catalogs. … Read more

If you have an illuminated ABS warning, a traction control light that won’t quit, or a speedometer that drops out at speed, the culprit is almost always a worn ABS wheel speed sensor. Over six weeks of in-shop and driveway testing — installing ten different sensors across GM, Ford, Toyota, and Mazda vehicles — our … Read more

Choosing the best fuel pressure regulators for your build comes down to three quick decisions: carbureted or EFI, deadhead or return-style, and naturally aspirated or boosted. For most carbureted street builds, the Holley 12-841 delivers stable 4.5 to 9 PSI regulation. For EFI and boost-referenced applications, the Aeromotive 13129 is our team’s long-term winner. Budget … Read more

A fuel rail is the metal or composite tube mounted on your intake manifold that delivers pressurized fuel from the pump to each injector at equal pressure. Aftermarket fuel rails matter when you exceed OEM flow capacity (typically above 500 HP), want cleaner plumbing with AN fittings, need a center feed for tucked engine bays, … Read more

A thermostat housing is a small part with a big job. It holds the engine thermostat, seals the coolant passage between the engine and radiator, and keeps the whole cooling system sealed against 1 to 2 bar of pressure through thousands of heat cycles. When a thermostat housing cracks or warps, coolant leaks onto the … Read more

A radiator hose is the flexible, heat-resistant tube that carries coolant between your engine and radiator. The upper radiator hose delivers hot coolant from the engine’s thermostat housing into the radiator, where it sheds heat. The lower radiator hose then returns the cooled coolant back to the water pump to start the loop again. Together, … Read more

Silicone radiator hoses are aftermarket coolant hoses built from reinforced silicone rubber that handle temperatures up to 350°F, far past the 257°F ceiling of standard EPDM rubber hoses. I spent 8 weeks testing 10 different silicone radiator hose kits on three different vehicles: a 2014 Subaru WRX with 22 PSI of boost, a 1998 Honda … Read more