A performance intake manifold ranks as the leading bolt-on upgrade in a performance-minded build. Good examples can work wonders, while the wrong choice can spell doom to the combination. The ...

TwinPower unveiled its new performance-driven components for Harley-Davidsons, including steering-damper kits and high-flow ...

Isn't the diesel aftermarket a great thing? If we want added performance, there's something for us. If we want to spice up our truck's look, there's something else for us. And occasionally, there's ...

Sponsored Content. We may receive a commission on purchases made from links. The 6.7-liter Cummins turbodiesel inline-6 is one of the most widely used diesel engines out there. It has been fitted to ...

Last month we showed what gains were available from three aftermarket Three-Valve intake manifolds in naturally aspirated trim. This month we're going to try the same three intakes, only now we'll see ...

OBJECTIVE: Wet flow, pressure excursions, port volume, runner length, plenum volume—all these figure into an engine's overall efficiency. But there's more… Sometimes theory is neat, but sometimes it ...

Your intake manifold. It takes in air and sends it to your engine's combustion chamber. This is basically the start of the combustion process. After all, you can't have combustion without air.

For more than four decades, Lingenfelter Performance Engineering has been churning out a slew of wild high-performance products, from engine upgrades, to parts, to crate engines. Now, the tuner is ...

QUESTION: I was just informed the coolant leak in my GMC Yukon is due to a leaking intake manifold gasket. Apparently this is a common problem. I was shocked at the price quoted for the repair and am ...

Sure, my garage already had a Lexus LS400 intake and an NOS Jeep Tornado valve cover on the wall, but these things just intensified my need for a 928 intake. I see 928s in cheap self-service wrecking ...