Unleash the hidden power of your vehicle's engine with an aftermarket Citroen C4 air intake! This performance upgrade increases horsepower and torque and enables you to enjoy a more aggressive driving. Because horsepower increases, your C4 has greater capacity to tackle tough driving conditions with ease. CARiD stocks a number of aftermarket air intakes for your C4 and makes it easy for you to find the one that exactly fits you car's sub model and year. To replace your OEM air intake, choose one from K&N, Injen, AEM, and Volant. They maximize air flow, giving you perfect engine efficiency, and in return, more horsepower and torque.
Increased gas economy is another advantage of installing an aftermarket air intake into your vehicle. What's more, this aftermarket product forces your car's engine to burn gas more efficiently, which reduces the fuel consumption and increases mpg. Moreover, the aftermarket air intakes are durable and will serve you for many years to come. By replacing your stock air intake with an aftermarket one, you will also get a smoother throttle response, faster acceleration, and more powerful engine sound. Besides, each aftermarket air intake is engineered with an advanced air filter that protects your engine from any dirt due to its superior filtration.
Let the engine of your vehicle breathe freely with a quality air intake system. To satisfy the requirement of the most discerning enthusiasts, we've carefully handpicked world-class air intake systems manufactured by the top names in the industry. Engineered to optimize the air path between the air filter and the engine, air intakes provide your vehicle with the maximum airflow and you with a noticeable increase in horsepower and torque. Read over 2 air intake system reviews with an average rating of 4.5 out of 5 stars, and choose the system that is perfect for you.
"The intake was a breeze to install. Instructions were clear and easy to follow. There was one quirk with my VW though, the secondary air injection hose connection was a tight fit. I had to remove the intake pipe from the silicone connector and affix the hose to get it to seat properly and click into place. After buttoning everything up, I took it for a test drive, the 2.5-L motor pulls stronger between 2000 rpm and 4500 rpm. Do not have to downshift as much either. Wonderful product that delivered what it said it would."
"I was happy to find out that the CAI fit nicely under the hood without having to relocate anything."
"Great looking intake, I love the wrinkle black look... So different!! Installation was a pain but it had nothing to do with the intake! The 4Runner's MAF has a tendency to strip out the screws and that's exactly what happened with ours. :( after that, everything went smoothly. Huuuge improvement in sound -- literally I never thought we could get our V6 to sound this throaty. :) Very, very pleased with it. No noticeable increase in MPG yet but it's due for a tuneup so that could be why. Feels peppier too, though not sure if we got a true 20 hp from it. Still worth the money for sure."
"Works like a charm, and sounds really great when I hit the gas pedal."
"This Injen air intake is way cool, easy to install, delivered quickly, and looks very nice in metallic black. Instructions are easy, just make sure engine is totally cool. The built-in blow-off valve (BOV) on the KIA Optima SX makes a very cool sound every time you ask for more power. I am very pleased."