Air intake Kit with Heat Shield System for Toyota Tacoma 4Runner 1999-2004
The 5VZ-FE is legendary for reliability, but nobody ever accused it of being "too fast." If you're tired of your 3.4L feeling like it's breathing through a coffee stirrer when you merge onto the highway, it's time to ditch the restrictive factory airbox.
Performance Cold Air Intake System with Black Piping for Toyota Tacoma / 4Runner (5VZ-FE)
If you drive a 3rd Gen 4Runner or a 1st Gen Tacoma, you know the struggle. The 3.4L V6 is bulletproof, but the stock intake tract is a maze of plastic baffles, resonators, and accordions designed to kill noise at the expense of airflow. Worse yet, on trucks of this vintage, those factory rubber intake boots are likely dry-rotted, stiff, or cracking, leading to vacuum leaks and "lean code" headaches. The "Deckplate Mod" can only do so much; to get real air into the combustion chamber, you need to streamline the path.
This Cold Air Intake System is the direct solution for the suffocated 5VZ-FE. By replacing the turbulent stock corrugated tubing with smooth, mandrel-bent aluminum piping, we straighten the airflow path directly to the throttle body. The included heat shield isolates the filter from the radiant heat of the engine bay—crucial in these trucks where under-hood temps soar while crawling or idling. The result isn't just a dyno number; it's a sharper throttle response that gets the truck moving easier, especially when you are running larger tires or carrying gear.
Beyond the flow dynamics, there is the sound. The 5VZ has a distinct, aggressive growl that the factory silencers completely mute. With this intake, you unlock that deep, sporty induction roar under hard acceleration, letting you actually hear the engine work. It keeps the cabin quiet at cruise but wakes up when you drop the hammer. This is a bolt-on restoration and upgrade in one, removing aging rubber components and replacing them with high-grade silicone and powder-coated aluminum that will last the life of the truck.
Why You Need This Upgrade
- Unrestricted Airflow: Removes factory resonators and baffles for a direct, high-velocity air path to the engine.
- Throttle Response: Reduces the lag inherent in the stock system, providing snappier acceleration off the line.
- Durable Construction: Replaces prone-to-cracking OEM rubber boots with 4-ply reinforced silicone couplers.
- Maintenance Ready: Features a washable, reusable high-flow dry style air filter—never buy a paper filter again.
- The "Toyota Growl": Unlocks the deep, aggressive induction sound of the V6 engine under load.
| Fitment | 1999-2004 Toyota Tacoma / 4Runner |
| Engine Code | 5VZ-FE (3.4L V6) |
| Installation | Bolt-On / 30-45 Minutes |
| Material | Aluminum Piping / 4-Ply Silicone / Stainless Steel |
| Performance Gains | +5-10 HP / +6-8% Torque (Est.) |
Installation Notes
This system is designed as a direct bolt-on upgrade requiring no drilling, cutting, or fabrication. Installation typically takes 30-45 minutes with basic hand tools. The kit integrates seamlessly with your factory Mass Air Flow (MAF) sensor and computer systems, meaning no check engine lights when installed correctly. Note: This intake system is not CARB exempt and is not street legal in California.
Replaces These OEM Applications & Part Numbers
- 1999-2002 Toyota 4Runner (3.4L V6 Engines Only)
- 1999-2004 Toyota Tacoma (3.4L V6 Engines Only)
Includes: Filter, Black Piping, Heatshield, Hoses and basic screws
Breathe new life into your 3.4L V6. Order your Cold Air Intake System today and get the power, sound, and efficiency your Toyota was built to deliver.