AEM Short Ram Intake for the Acura Integra Type R: A Complete Performance Guide

The Acura Integra Type R (DC2) remains a benchmark for front-wheel-drive performance, and one of the most accessible upgrades owners consider is the intake system. The AEM Short Ram Intake has earned a solid reputation in the Honda community for delivering noticeable gains without the complexity of a full cold-air setup. This expanded guide covers real-world power gains, a step-by-step installation walkthrough, long-term maintenance tips, and a detailed budget breakdown to help you decide if this modification is right for your Integra Type R.

Why the AEM Short Ram Intake?

AEM is known for precision-engineered intake systems that balance airflow, filtration, and induction sound. The short ram design mounts the filter directly to the throttle body or a short tube, reducing restriction compared to the factory airbox while keeping the filter in the engine bay. This design is easier to install and maintain than a true cold air intake (CAI), though it draws warmer air than a CAI. For the B18C5 engine in the Integra Type R, the AEM short ram offers a distinct intake note and a sharper throttle response that many enthusiasts find addictive.

Performance Gains: Dyno-Proven Results

Power gains from an AEM Short Ram Intake vary depending on the vehicle’s current state of tune, ambient temperature, and whether the engine has supporting modifications. On a stock B18C5, dyno runs typically show an increase of 5–15 horsepower and 5–10 lb‑ft of torque, with the peak gain occurring in the upper RPM range (6,000–8,000 rpm). The torque bump in the mid-range is less pronounced than a CAI but still improves daily drivability.

  • Horsepower gain: 5–15 HP at the wheels
  • Torque gain: 5–10 lb‑ft
  • Throttle response: Noticeably sharper, especially during tip-in
  • Sound: Deep, aggressive induction noise under hard acceleration

It’s important to note that the factory ECU can adapt to increased airflow to a certain degree, but for maximum gains, a tune is recommended. Many owners pair the intake with a high-flow exhaust and a Hondata or similar ECU calibration to unlock the full potential.

Short Ram vs. Cold Air Intake on the ITR

The debate between short ram and cold air intakes is perennial. A cold air intake relocates the filter into the lower bumper area where air is denser, potentially offering higher peak power. However, it also carries a risk of hydrolocking in heavy rain or deep puddles—a real concern for a daily‑driven Integra Type R. The AEM short ram avoids that risk entirely and requires no cutting of the chassis. For most street‑driven ITRs, the convenience and safety of the short ram outweigh the marginal power difference.

Installation Guide: Step‑by‑Step with Pro Tips

Installing an AEM Short Ram Intake on a DC2 Integra Type R is a straightforward one‑hour job for someone with basic mechanical skills. Below is a detailed process that covers both the removal of the factory intake and the installation of the AEM kit.

Tools You Will Need

  • 8mm, 10mm, 12mm sockets and a ratchet
  • Flathead and Phillips screwdrivers
  • Pliers (for hose clamps)
  • Torque wrench (optional, but recommended for throttle body bolts)
  • Trim removal tool (or a flathead, carefully used)
  • Shop rags and a vacuum (to clean the throttle body area)

Step 1: Prepare the Vehicle

Park on a level surface and allow the engine to cool completely. Disconnect the negative terminal of the battery to prevent any short circuits or accidental starter engagement. Remove the engine cover (two bolts on the valve cover of the B18C5) if installed.

Step 2: Remove the Factory Air Intake Assembly

Start by loosening the hose clamp that secures the intake tube to the throttle body. Next, unclip the resonator box located inside the front fender (if your car still has it). Remove the two 10mm bolts holding the air filter box to the chassis. Carefully pull the entire assembly out—you may need to squeeze the rubber inlet tube to release it from the throttle body.

Step 3: Disconnect Sensors and Hoses

The factory intake includes a vacuum line to the idle air control valve and a sensor wiring harness. Unplug the harness and disconnect the vacuum hose. Note the routing of these hoses so you can replicate it with the new intake. Some AEM kits include a replacement hose or adapter; keep the original just in case.

Step 4: Install the AEM Intake Tube

Slide the supplied silicone coupler onto the throttle body. Attach the AEM aluminum tube to the coupler and snug the clamp—do not fully tighten yet. Position the tube so it clears the radiator hose, the alternator, and the brake master cylinder. Use the bracket (if included) to secure the tube to a factory bolt hole near the radiator support.

Step 5: Attach the Filter and Final Adjustments

Slide the AEM dry‑flow or oiled filter onto the end of the tube and tighten the band clamp. Rotate the filter so it faces the engine bay side, away from the radiator fan. Once everything is aligned, torque the throttle body bolts to 8–10 ft‑lb and tighten all coupler clamps to 3–4 ft‑lb. Reconnect the vacuum hose and sensor harness. Double‑check that no wires or hoses are pinched.

Step 6: Reconnect Battery and Test

Reconnect the negative battery terminal. Start the engine and let it idle for two minutes. Listen for any air whistles that indicate a loose clamp. Rev the engine to 2,500–3,000 rpm and check for smooth operation. If the idle fluctuates, you may need to reset the ECU (disconnect battery for 10 minutes, then drive through an idle relearn cycle).

Budget Estimates: DIY vs. Professional Installation

The total cost of an AEM Short Ram Intake for the Acura Integra Type R depends on whether you install it yourself and what tools you already own. Below is a realistic breakdown:

ItemCost
AEM Short Ram Intake Kit (part #2210C or equivalent)$250–$350
Basic socket set and screwdrivers (if not owned)$30–$100
Torque wrench (optional but recommended)$30–$80
Professional labor (1–2 hours)$100–$200
Additional items (e.g., replacement vacuum hose, zip ties)$10–$30
Total DIY (without tools)$260–$380
Total DIY (with new tools)$320–$560
Total professional install$360–$580

These estimates assume you are installing the intake on a stock vehicle. If you are also adding a larger throttle body or aftermarket ECU, costs will rise accordingly. The intake itself is a one‑time purchase, and the filter can be cleaned and reused, making it a worthwhile investment for long‑term ownership.

Maintenance and Filter Care

To keep the AEM Short Ram Intake performing at its best, regular maintenance is essential. The filter should be inspected every 5,000 to 10,000 miles. If you live in a dusty or high‑pollution area, clean it more frequently.

  • For oiled filters: wash with AEM filter cleaner, rinse with water, allow to dry completely, then reapply the oil evenly. Let the oil soak for 20 minutes before reinstalling.
  • For dry‑flow filters: use compressed air or a vacuum to dislodge debris. Do not use oil. Replace the filter after 30,000–50,000 miles or as needed.

Check all clamps and couplers each time you clean the filter. Vibration can loosen them over time. A loose coupler will cause unmetered air to enter the engine, leading to a lean condition and potential detonation.

Do You Need a Tune After Installing an AEM Short Ram?

The B18C5 engine’s factory ECU has some ability to compensate for increased airflow due to its MAP‑based fuel strategy. Many owners run an AEM short ram without any other modifications and report no check‑engine lights or drivability issues. However, to extract the maximum gain and ensure a safe air‑fuel ratio, a professional tune is strongly recommended. A basemap for a stock ITR with an intake can be loaded via Hondata, Neptune, or MoTeC. Expect to pay $300–$600 for a dyno tune session, which can add an additional 5–10 HP over the intake alone.

If you are only installing the intake and plan to keep the rest of the engine stock, a tune is not strictly necessary, but it is the best way to verify that the engine is not running lean. For those building a full bolt‑on car, the intake should be one of the first modifications, followed by a header, exhaust, and a proper calibration.

Common Installation Mistakes to Avoid

Even a simple intake install can go wrong if you overlook details. Here are the most frequent pitfalls on the DC2 Integra Type R:

  • Not cleaning the throttle body: While the intake is off, take the opportunity to spray throttle body cleaner on the butterfly plate. Built‑up carbon can cause idle issues after the new intake is fitted.
  • Overtightening clamps: Aluminum tubes can deform if you crank down on the clamps. Tighten them until the coupler is snug and the tube doesn’t rotate.
  • Routing the filter too close to the radiator fan: The fan can pull hot air from the radiator, reducing intake efficiency. Angle the filter towards the left inner fender.
  • Forgetting to reconnect the IACV vacuum line: The idle air control valve must receive a vacuum signal. A disconnected line will cause a high or erratic idle.
  • Not resetting the ECU: After any airflow change, reset the ECU by disconnecting the battery for at least 10 minutes. Drive the car gently for 20 miles to let the ECU relearn the idle and fuel trims.

Final Verdict

The AEM Short Ram Intake is a well‑engineered, enthusiast‑proven upgrade for the Acura Integra Type R. It delivers a satisfying power bump, a sharper throttle response, and an iconic intake sound that harkens back to the golden era of Honda performance. With a DIY installation cost of around $300 and minimal maintenance requirements, it remains one of the best first modifications for any ITR owner. Pair it with a professional tune to fully unlock the B18C5’s potential, and you’ll have a responsive, characterful engine that’s ready for the street or the track.

For further reading, check out AEM’s official product page (AEM Intakes), detailed installation videos on Team Integra (Team Integra forums), and dyno comparisons by the Honda‑tech community (Honda‑Tech).