Several aftermarket manufacturers sell engine intake air filters that they claim provide better airflow and increase a car’s horsepower and acceleration as a result. Some of these companies have many ...

If an engine’s induction system is only as good as its weakest link, then a set of 400-cfm cylinder heads, giant intake valves, and mega-flow carburetors don’t mean squat if they’re getting choked ...

K&N Engineering has expanded its Performance Diesel lineup with new NextGen Air Intake Systems and Dryflow replacement air filters for late-model Ford, GM, and Ram diesel pickups. For Off-Road.com ...

Regular readers will recall last month's testing of two Motordyne bolt-ons that successfully proved Helmholtz resonance can be used to increase exhaust gas scavenging and help your ride put out a few ...

out the new “Build Your Own Air Filter” engine at www.afepower.com. Simply log on and enter your filter Pro Guard 7 and Pro Dry S) and you will have your custom filter chosen and ready to order.

Why performance air intakes might be a great, low-cost investment if you’re looking for more power. Why are aftermarket air intake systems so popular? A related question might be, why replace the ...

Running your furnace, central air, or heat pump probably constitutes a big part of your utility bill. But it’s a small, often inexpensive part—the air filter—that keeps these heating and cooling ...