If some testing is good, then more testing must be better, so we contacted as many coldair, high-flow intake manufacturers as we could to take our testing to the next level. The test mule, once again, ...

Q: This is in regard to the Nov. '01 and Feb. '02 "4xForum" topic Restricted Sixes. The reader asked about a restrictor cone in the air intake tube of 4.0 inline-sixes found in many Jeeps. I was ...

Car enthusiasts are always on the hunt for something new that will improve the ride in their vehicle. From the track to local city streets, a car that's reliable and equally fun to drive is a major ...

Cold Air Intakes (CAIs) are among the most popular modifications enthusiasts make to their cars. Of course, like anything popular, there’s a fair bit of discourse surrounding them. Claims range from ...

It’s in a place like Moab, Utah where the open-air experience offered by the Jeep Wrangler makes a lot of sense. The red rocks loom overhead, snow-capped mountains peer over the horizon and vegetation ...

Cold Air Intakes (CAIs) are among the most popular modifications enthusiasts make to their cars. Of course, like anything popular, there’s a fair bit of discourse surrounding them. Claims range from ...

If you think about it, there are things about your car that just don’t make sense. You’ve been told that more air is a good thing for power, that a cold air intake, more scoops, more vents, etc, are a ...

Cold air intake filter cleaning is necessary to maintain the fuel economy of your car. When properly maintained, the cold air intake can increase your car's horsepower by increasing the flow of air to ...

There’s hardly anything on a truck that’s simpler than its air-intake system. And not too many things – maybe only your right foot – that can have as much effect on fuel economy. A diesel engine needs ...