Cold Air Intake for 1999-2004 Tacoma V6 3.4L

Toyota Tacoma 1999–2004 3.4L V6 (5VZ-FE) Cold Air Intake

This Flashark cold air intake kit replaces the factory airbox and intake tube on 1999–2004 Toyota Tacoma models powered by the 3.4L V6 (Toyota 5VZ-FE) engine. The kit pairs a mandrel-bent aluminum intake tube with a sealed heat shield and a washable red cone filter, so the engine pulls cooler, denser air from outside the hottest part of the bay instead of the stock enclosed box. For first-generation Tacoma owners who want a bolt-on upgrade with reusable filtration, a deeper intake tone, and a cleaner engine-bay appearance, this kit delivers the core hardware swap without ECU tuning or permanent modification.

Engineered as a direct-fit replacement that retains the factory mass airflow (MAF) sensor location and bore, the kit installs with hand tools in approximately 35 minutes — no cutting, no splicing, no tune required for a stock 5VZ-FE. Polished aluminum pipe, red performance filter, heat shield, silicone couplers, hose clamps, and a mounting bracket are all included, so the original airbox can come out in one piece and the new intake goes in without improvised hardware.

Specifications

Key Features

• Sealed heat-shielded intake: The black heat shield isolates the filter from engine-bay heat and routes cooler air from outside the bay to the filter, so the 3.4L V6 draws denser charge air rather than hot under-hood air.
• Direct-fit replacement for the factory airbox and intake tube: The mandrel-bent aluminum tube is engineered to match the OEM mounting points and MAF sensor location on 1999–2004 Tacoma 3.4L applications, so the stock airbox comes out and the new tube drops in without cutting or splicing.
• Factory MAF sensor retained at OEM location and bore: The mass airflow sensor transfers from the stock airbox to the new tube in its original orientation, keeping the MAF calibration within the OEM design envelope and avoiding a custom calibration on a stock 5VZ-FE.
• Washable and reusable high-flow cone filter: The red oiled-cotton filter is serviceable rather than disposable — clean and re-oil on a regular interval instead of swapping in a new paper element at every service.
• No tune required for a stock 5VZ-FE installation: With the factory MAF sensor retained and the intake sealed to the throttle body, a basic bolt-on install on an otherwise stock 3.4L V6 does not need additional fuel or ECU calibration.
• Bolt-on install in approximately 35 minutes with hand tools: The kit installs with basic hand tools, no permanent vehicle modification, and no specialty shop visit required for a stock application.
• Hardware and install guide included in the box: Silicone couplers, hose clamps, a mounting bracket, and an installation guide ship with the kit so the original airbox can come out and the new intake can go in as one self-contained job.

Who This Kit Is For

This kit is built for 1999–2004 Toyota Tacoma owners running the 3.4L V6 (5VZ-FE) who want a sealed, heat-shielded cold air intake and a bolt-on install.

• ✓ For you if you drive a 1999–2004 Tacoma 3.4L and want a sealed cold-air setup with a washable filter.
• ✓ For you if you prefer a reusable oiled-cotton filter over a disposable paper element.
• ✓ For you if you want a deeper induction tone under acceleration without going to an open-element short-ram.
• ✓ For you if your 5VZ-FE is stock or close to stock and you want a no-tune install that retains the factory MAF sensor.
• ✗ Not for you if you have a 1995–2004 Tacoma 2.4L or 2.7L four-cylinder — those engines use a different intake layout.
• ✗ Not for you if you have a 1999–2002 4Runner or 1993–1998 T100 with the same 5VZ-FE engine — the engine-bay mounting points and intake routing differ even though the engine code matches.
• ✗ Not for you if you plan deep-water crossings without a relocation setup — see the hydrolock warning in Check Before Ordering.
• ✗ Not for you if you are in California or a CARB-adopting state and need a CARB EO-approved kit — this SKU does not carry a CARB EO.

Browse the full Toyota cold air intake kit collection for other Toyota platforms.

Check Before Ordering

1. Engine and model year: This kit fits 1999, 2000, 2001, 2002, 2003, and 2004 Toyota Tacoma with the 3.4L V6 (5VZ-FE) only. First-generation Tacomas were also offered with 2.4L and 2.7L four-cylinder engines that use a different intake layout and are not covered by this SKU.
2. Drivetrain: The intake routing for 2WD and 4WD Tacoma 3.4L models is compatible. Engine size, model year, factory sensor arrangement, and any previous under-hood modifications remain the more important checks.
3. Intake type: This is a sealed, heat-shielded cold air intake. The heat shield isolates the filter from engine-bay heat; if you want the loudest possible induction sound instead, a short-ram (open-element) intake is a different product category.
4. Sensor and throttle-body fitment: The factory MAF sensor is retained and re-installed on the new tube in its original orientation. Confirm the MAF sensor bore, the throttle-body coupler size, and the breather hose routing match the product photos before removing the stock airbox. A swapped intake manifold, modified throttle body, or non-factory MAF sensor is a conditional fit and should be verified before installation.
5. Legality in your state: This kit does not carry a CARB Executive Order (EO). It is not legal for sale or use in California and other CARB-adopting states. Diesel applications and pre-1995 vehicles are generally exempt from CARB EO requirements, but this SKU is a gasoline 5VZ-FE application.
6. Filter care and installation environment: The oiled-cotton filter needs periodic cleaning and re-oiling — over-oiling can migrate to the MAF sensor and cause hesitation or a CEL. Inspect the filter more often in dust, sand, or off-road conditions. The filter sits in the engine bay; avoid deep-water crossings (hydrolock risk) and consider a high-mounted or relocation intake if you regularly ford water.

What's in the Box

• Polished aluminum intake tube ×1
• Red washable and reusable high-flow cone filter ×1
• Sealed heat shield ×1
• Silicone coupler(s) and hose clamp(s)
• Mounting bracket and hardware pack
• Installation guide

Replacement and service parts — including a spare washable filter and cleaning kit for the Toyota Tacoma 3.4L intake — are available in the Toyota air intake collection.

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