Samantha Reed

After 3 months of testing on a 2010 Tahoe, a 1997 Jeep Cherokee 4.0L, and a 302 small-block Ford, I can tell you that the best heater hoses in fall into two camps: premium EPDM rubber from Gates for daily drivers, and reinforced silicone from brands like Vibrant for high-heat builds. Pick the wrong one … Read more

When your engine idles rough, your check engine light flashes P0171, or your shop vac suddenly loses suction, the culprit is almost always the smallest, cheapest part in the system: the vacuum hose. After two decades of working on cars and reviewing gear for our team, I can tell you that OEM rubber vacuum lines … Read more

A check engine light, a rough idle that won’t quit, or oil vanishing faster than it should — these are the symptoms that send most drivers searching for the best PCV valves in . The PCV (Positive Crankcase Ventilation) valve is a tiny spring-loaded emissions part that routes blow-by gases from your crankcase back into … Read more

Three months ago, my buddy Mike texted me a photo of his dashboard: the check engine light was on, his Ford F-150 was bucking at idle, and the local dealer had just quoted him $1,800 to fix it. Twenty minutes later, with an OBD-II scanner and a $42 valve on the workbench, we’d pulled a … Read more

Upgrading your throttle body is one of the most underrated bolt-on mods you can make, especially on LS swaps, turbo builds, and any setup where the stock unit has become an airflow bottleneck. After weeks of research, digging through owner forums on r/LSSwapTheWorld and ls1tech, and comparing specs on 30+ throttle bodies, our team narrowed … Read more

Looking for the best performance throttle bodies in ? After spending 90 days on the dyno and in the garage with 10 different throttle bodies across LS, Coyote, Hemi, EcoBoost, Honda, and Jeep platforms, our team put together this definitive buyer’s guide. A performance throttle body is an aftermarket replacement for the OEM air-intake valve … Read more

Your engine air filter is the single cheapest insurance policy on your car. It sits between the road grime and your combustion chamber, trapping dust, pollen, sand, and water droplets before they ever touch your pistons or bearings. I have replaced hundreds of them over the years, and the difference between a clogged filter and … Read more

I have spent more weekends than I would like to admit with a fuel line in one hand and a multimeter in the other, chasing a rough idle or a stumble on boost. That is exactly why I pulled together this guide to the best fuel pumps on the market right now, because once a … Read more

An electric fuel pump is a 12V motor-driven pump that moves fuel from the tank to the engine at controlled pressure, typically 4-7 PSI for a carburetor and 40-60 PSI for EFI. After three months of testing on carbureted small blocks, classic Mustangs, and an E85 turbo build, our team narrowed down the best electric … Read more

I have been bolting fuel pumps onto everything from a 7-psi street SBC to a 1,000 whp E85 turbo LS for the better part of two decades, and I can tell you the pump is almost always the part that decides whether a build lives or leans itself to death. The right high flow fuel … Read more