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One of the easiest ways to get more power from your engine is to dump the OE air filter and air intake system and replace them with high-flow aftermarket parts. Factory systems are designed with priorities other than performance, like low intake noise and cost. As a result, most vehicles come from the factory with restrictive air boxes and intake tubes, and cheap paper air filters. Choose a system from our vast selection and make your engine come alive.


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An inexpensive way to start is just by replacing that paper air filter. It filters the air OK, but the small passages are very restrictive, and as dirt builds up, flow gets even worse. A typical aftermarket performance air filter has several layers of filtration material like cotton gauze, which traps dirt without restricting airflow. What’s more, aftermarket filters can be cleaned and reused, so you get increased engine power and save money to boot.

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But to really get an increase in airflow, you need to increase the size of the air filter. The typical conical air filter that is included with an aftermarket air intake system is not only made of better material, it is larger and has much greater surface area than the OE filter, for much greater airflow. An economical way to get the benefits of a larger filter is with one our kits that attaches the filter to a flexible, universal intake tube, or attaches it to the factory air intake tube. The next step up to greater airflow is to replace that restrictive OE air intake tube.

Most factory air intake tubes are constructed with the goal of keeping air intake roar to a minimum. They usually have awkward bends and have sound baffles, which may reduce noise but can also restrict airflow. Aftermarket intake tubes are constructed from mandrel-bent aluminum or molded polyethylene, with larger diameters and smoother bends, for better airflow to the throttle body. And if you’re a hot rodder, you’ll consider the increased intake noise music to your ears when you stomp on the gas. A basic air intake system will replace the factory air box and air intake tube, and install in approximately the same location.

The next step to more power is to feed the engine cooler air, which is denser and contains more oxygen, for better combustion. We offer systems that employ varying methods to shield the filter from engine heat so it can take in cooler air. Some systems have barriers that seal against the hood, to separate the filter from engine heat. We also have systems with an air box, which not only shields the filter from heat, but is much larger than the OE unit so it can hold a much larger filter. For exposure to the coldest air, some systems locate the air filter outside the engine bay, or use a scoop to funnel air to the filter.

To complement your air intake system and achieve better airflow all the way to the cylinder heads, we offer increased diameter, performance MAF (Mass Air Flow) sensors and throttle bodies, and high performance intake manifolds. Similar to our air intake systems, our manifolds have larger diameter ports and smoother runners than their factory counterparts, for better flow. And since aftermarket intake manifolds are typically made of aluminum, if you’re replacing an iron manifold you’ll see a significant reduction in weight as well.

Finally, if you’ve installed a big cam and seen your engine vacuum level drop, we have the performance vacuum pumps that can supply the right amount of vacuum to your brake booster. These electric pumps come with everything needed for installation, and will maintain vacuum for the booster as well as vacuum operated accessories. We also offer vacuum pumps for drag racers to evacuate the crankcase and improve ring seal.

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Guides & Articles

  • Performance Parts
    Aftermarket air intake systems have become one of the most popular engine modifications available for late model cars and trucks. An easy question to ask is why are these so popular? After all, didn't engineers who work for your vehicle manufacturer spend years developing the best engine components available? Since power and fuel economy are major selling points these days, it's hard to imagine car companies not doing everything they can to maximize horsepower, miles per gallon, or both.
  • Performance Parts
    There are many types of aftermarket air intake systems that range from simple and inexpensive to elaborate. In the scope of this article, we'll examine the different types of air intakes, what they do, and look at a few specific product examples of each. But in short, performance air intake setups increase airflow into your engine - boosting combustion and creating more horsepower and torque that you can actually feel. Their relatively low cost and easy installation (bolt-on in most cases) keeps them in popular demand by car enthusiasts that own everything from 1.5-liter turbo motors to big block V8 engines.
  • Performance Parts
    An intake manifold is an integrated assembly that sits atop the engine, consisting of a series of tubes which distribute fresh outside air to each and every cylinder. On V-shaped engine blocks, an intake manifold typically sits between the two cylinder banks while inline engines may feature a manifold to the side of the cylinder head. Intake manifolds serve as a mounting point for carburetors, throttle body assemblies, fuel injectors, thermostats, and more depending on vehicle manufacturer engineering preferences. Intake manifolds may also serve to route coolant through dedicated channels in order to remove heat from the engine. Because of their location and functionality, intake manifold assemblies are under constant stress from engine vacuum pressure as well as direct heat from coolant, cylinder combustion gasses, and the cylinder heads to which they are mounted.
  • Performance Parts
    Most aftermarket air filters are constructed from multiple layers of cotton gauze, which are sandwiched between wire mesh that is formed into pleats. The layers of oiled cotton fibers are able to trap dirt particles that are even smaller than the holes in the filter media. The airflow stays consistent between cleanings, for optimal combustion.

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Air Intakes Reviews

Average rating:  4.5  4.7 - 2492 reviews
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5 of 5
2007 Nissan Frontier / Posted by James R (Norwalk, CA) /

Sweet! So simple even you can do it. The installation couldn't be any easier. The illustrated installation guide makes removing the stock equipment and installing the Brute Force System fool proof. I ordered the Brute Force Polished Intake System and an MBRP Installer Series Cat-Back Exhaust System at the same time. I had my truck (2015 Nissan Frontier SV 4.0L V-6) dyno'ed before installing anything. 246 hp and 264 ft lb torque at 5800 RPM. If I wasn't waiting for delivery of a set of "B Pipes" from another vendor (2 weeks) I would have already had my truck tuned and dyno'ed again and could provide the real hp improvement information. Does anyone have the phone number for X-terra performance? They don't list one on their site.

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