Engine Short Ram Air Intake

What Is a Short Ram Air Intake?

A short ram air intake is one of the most popular and accessible bolt-on performance upgrades available for modern vehicles. Unlike the factory airbox, which prioritizes noise reduction and packaging constraints over flow efficiency, a short ram intake replaces the restrictive OEM tubing and filter with a straight, free-flowing pipe and high-flow air filter mounted close to the engine. The result is a less obstructed path for air to reach the throttle body and fuel injection system — a key part of the Air and Fuel Delivery equation that governs how your engine breathes and performs.

How Short Ram Intakes Work and Why They Matter

Every internal combustion engine is essentially an air pump. The more air it can efficiently draw in and combine with fuel, the more power it can produce. Factory intake systems are engineered with a long list of compromises — tight packaging, noise regulations, and cost targets all take priority over raw airflow. A short ram intake eliminates those compromises by using smooth, mandrel-bent or precision-formed tubing that minimizes turbulence and restriction. The high-flow filter element increases the filter surface area compared to most OEM paper filters, allowing more air volume to pass through with each intake stroke.

Short ram intakes are typically positioned in the engine bay near the throttle body, making them easier to install than cold air intakes, which route piping down toward the lower, cooler areas of the engine bay. This proximity to the engine means installation is often straightforward and tool-light — many enthusiasts complete the swap in under an hour. The trade-off is that short ram filters draw from the warmer engine bay air rather than cooler ambient air from outside; however, manufacturers often address this with optional heat shields or wraps to mitigate heat soak.

Beyond power gains, short ram intakes deliver a noticeable change in the engine's intake note — producing a more aggressive induction sound under throttle that many enthusiasts find rewarding. The open filter design also makes filter maintenance more accessible than with a sealed factory airbox.

Key Considerations When Shopping Short Ram Intakes

• Fitment: Always verify that the intake is engineered specifically for your vehicle's year, make, model, and engine size. Vehicle-specific designs ensure proper MAF sensor placement and compatibility with factory mounting points.
• Filter type: Dry filter media and oiled filter media each have different maintenance schedules and airflow characteristics. Consider which suits your driving habits.
• Emissions compliance: In states with strict emissions regulations (such as California), look for intakes with a CARB Executive Order (EO) number to ensure street legality.
• Heat management: Consider whether the kit includes a heat shield to help isolate the filter from engine bay heat, which can improve real-world performance consistency.

Top Brands in Short Ram Air Intakes

Injen Technology is the dominant force in this category, and for good reason. Injen is recognized as the world's first tuned air intake system manufacturer, holding four patents on the intake tuning process — including the proprietary MegaRam (MR) Technology and Air Fusion systems. Their SP and IS short ram series feature aerospace-grade 6061-T6 or mandrel-bent aluminum tubing, the brand's SuperNano-Web dry air filter for superior filtration and airflow, and are manufactured in Pomona, California. All Injen intake systems are backed by a Limited Lifetime Warranty.

DC Sports rounds out the category with a heritage rooted in the sport compact and import tuning scene. DC Sports has long been a go-to brand for Honda, Acura, and other Asian import platform enthusiasts seeking reliable, proven performance gains with an emphasis on clean fitment and straightforward installation.