Upgrading the Ram 1500 TRX with an AFE Power cold air intake is one of the most effective ways to unlock additional horsepower and improve throttle response. The supercharged 6.2L HEMI V8 already delivers brutal performance, but replacing the restrictive factory intake with a high-flow system allows the engine to breathe more freely. AFE Power’s kit is engineered specifically for the TRX, utilizing a sealed air box and a high-density, oiled cotton filter to maximize airflow while maintaining proper intake air temperatures. This guide provides a comprehensive, step-by-step installation walkthrough so you can safely install the system and realize the claimed 25 horsepower gain.

Tools and Materials Needed

Before you begin, gather the following tools and materials. Having everything at hand will streamline the process and avoid unnecessary interruptions.

  • AFE Power cold air intake kit (model 50-89019 for Ram TRX)
  • 10mm socket and ratchet
  • 8mm socket or nut driver
  • Flathead screwdriver (mid-size)
  • Phillips screwdriver (#2)
  • Torque wrench (capable of 8-12 lb-ft)
  • Trim removal tool (optional, for plastic clips)
  • Shop towels or clean rags
  • Safety glasses
  • Latex or nitrile gloves (to keep oil off hands)
  • Flashlight or work light

Preparation

Work in a well-ventilated area with sufficient lighting. If the truck has been running, allow the engine to cool completely to avoid burns. Disconnect the battery negative terminal as the first step—this prevents accidental short circuits and also resets the ECU adaptions, which helps the engine relearn airflow parameters after the intake swap.

Step 1: Disconnect the Battery

Locate the battery on the passenger side of the engine bay. Using a 10mm wrench or socket, loosen the nut on the negative (black) terminal and slide the cable off. Tuck it away from the battery so it cannot accidentally re‑connect. Wait at least two minutes before proceeding to allow any residual voltage in the electrical system to dissipate.

Step 2: Remove the Engine Cover

The TRX engine cover is held in place by four bolts. Use a 10mm socket to remove each bolt. Set the cover aside in a safe location—it can be reused with the AFE system. Inspect the rubber isolation mounts; if any are damaged, replace them before reinstalling the cover later.

Step 3: Remove the Factory Air Intake System

Carefully loosen the hose clamp connecting the intake tube to the throttle body using a flathead screwdriver. Slide the rubber coupler back to free the tube. Next, disconnect the mass airflow (MAF) sensor electrical connector by pressing the release tab and pulling the plug. Remove the MAF sensor from the factory tube using a Phillips screwdriver (two screws) and set it aside safely—you will reuse it in the AFE intake tube.

Unclip the factory air box lid by releasing the four metal spring clips. Lift the lid and remove the stock paper filter. The lower air box is secured with two 10mm bolts and a push‑pin at the front. Remove these fasteners and gently pull the box out of the engine bay. Dispose of the old filter and box according to local regulations.

Step 4: Install the AFE Power Air Box and Filter

Place the AFE Power air box into the same location as the factory unit. It uses the original mounting points—secure it with the supplied bolts and tighten to 8‑10 lb‑ft using a torque wrench. Insert the high‑flow oiled cotton filter into the air box, ensuring the rubber seal seats evenly. AFE recommends lightly oiling the filter before installation; the kit includes a pre‑oiled filter, so no additional oil is needed.

Install the AFE intake tube. First, install the silicon coupler onto the throttle body with the provided clamp, then slide the aluminum tube into the coupler. Position the tube so the MAF sensor flange aligns with the opening on the tube. Reinstall the MAF sensor using the original screws, being careful not to overtighten. Connect the electrical connector until it clicks.

Step 5: Connect the Air Inlet Duct

Attach the flexible rubber hose from the air box to the front intake duct (the part that draws outside air from the grille opening). Secure both ends with the supplied hose clamps. Ensure that all connections are snug but not overly tight—rubber components can distort if over‑clamped. Verify that the air box lid closes completely and seals against the filter.

Step 6: Reinstall the Engine Cover

Place the engine cover back over the intake tube and press down gently until it sits flush on its mounts. Install the four bolts and tighten to 8‑10 lb‑ft. Do not overtighten, as the cover is cosmetic and excessive force can crack the plastic.

Step 7: Reconnect the Battery

Reattach the negative battery cable and tighten the nut to 8‑10 lb‑ft. Close the battery cover if equipped. Your Ram 1500 TRX is now ready for startup.

Final Checks and First Start

Before starting the engine, double‑check every clamp, bolt, and electrical connection. Open the driver’s door, insert the key, and turn to the “run” position (without cranking) for about five seconds to allow the fuel pump to prime. Start the engine and let it idle for one minute. Listen for any air leaks—a whistling or hissing sound indicates a loose clamp. If everything sounds normal, take the truck for a short test drive, avoiding heavy throttle until the engine reaches operating temperature. You should notice a deeper intake sound and quicker throttle response. After the drive, let the engine cool and re‑check all clamps for tightness.

Understanding the 25 Horsepower Increase

AFE Power dyno‑tested this intake on a stock Ram TRX and recorded an average gain of 25 horsepower at the wheels. This improvement comes from three factors: reduced intake restriction, cooler charge air, and a more efficient air filter media. The supercharged engine responds particularly well to added airflow because the supercharger can fill the intake manifold more easily at lower boost pressures. Keep in mind that individual results may vary based on ambient temperature, fuel quality, and the condition of the engine. For maximum gains, pairing the intake with a custom tune (e.g., from [HPTuners](https://www.hptuners.com/) or a reputable tuner) can add another 15‑20 horsepower by adjusting the air‑fuel ratio and ignition timing.

Maintenance and Care

AFE’s oiled cotton filter must be cleaned and re‑oiled every 30,000 to 50,000 miles, or more often if you drive in dusty conditions. Use a dedicated filter cleaning kit (available from AFE or aftermarket suppliers). After cleaning, allow the filter to dry completely before applying the oil—never use compressed air to speed drying, as it can damage the media. Verify that the MAF sensor remains clean; oil contamination is possible if the filter is over‑oiled. A dirty MAF sensor can cause rough idle and poor fuel economy. Spray it with MAF sensor cleaner every second filter service.

Common Mistakes to Avoid

  • Over‑oiling the air filter: Excess oil can migrate onto the MAF sensor, causing drivability issues. Follow the oiling instructions that come with the kit.
  • Loose clamps: An air leak after the MAF sensor will cause lean air‑fuel mixtures and potential engine damage. Use a torque wrench on the throttle body clamp (8‑10 lb‑ft).
  • Skipping the battery disconnect: Failing to reset the ECU can lead to a temporary check‑engine light or rough idle while the computer adapts.
  • Overtightening MAF sensor screws: The plastic sensor housing can crack if screws are torqued too hard. Snug them by hand with a screwdriver.

Tuning Considerations

The Ram TRX’s ECU is capable of learning and adapting to the increased airflow; many owners see full benefit without a tune. However, if you drive aggressively or live at high altitude, a custom calibration can optimize fuel delivery and spark timing for the added airflow. Companies like [Dodge Performance](https://www.dodge.com/) (official Mopar) and aftermarket tuners offer calibration upgrades specifically for the TRX. Always confirm that the tune is compatible with your model year and intake system. A careless tune can overstress the engine or void the powertrain warranty.

Conclusion

Installing the AFE Power cold air intake on the Ram 1500 TRX is a rewarding weekend project that delivers a genuine performance increase. With simple hand tools and careful attention to detail, you can complete the installation in under two hours. The resulting improvement in throttle response and intake sound makes the TRX even more exhilarating to drive. For the best long‑term results, follow the maintenance schedule and avoid the common pitfalls described above. If you want to take performance further, consider pairing the intake with a professional tune. Visit AFE Power’s official product page for complete specifications, or check reviews on Ram TRX forums for real‑world owner experiences.