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The 2006-2011 Toyota Yaris 1.5L 1NZ-FE is one of the most reliable economy engines Toyota ever built — but the factory air intake was engineered for a single goal: silence. The multi-chamber plastic airbox, paper filter, and restrictive snorkel prioritize cabin quietness over airflow, leaving the 1NZ-FE feeling gutless above 3,500 RPM and sluggish off the line with the A/C running.
The FLASHARK Cold Air Intake Kit replaces the entire factory intake tract with a mandrel-bent aluminum tube and a high-flow dry cone filter. Real-world gains are 2-5 WHP with improved throttle response across the rev range — the difference between waiting for the engine to catch up and the car actually moving when you press the pedal. No ECU tune needed; the factory 1NZ-FE management adapts automatically.
At $78.95, this is the most affordable bolt-on upgrade available for the Yaris platform. Installation takes 30-60 minutes with basic hand tools, no cutting or permanent modifications. The dry filter is fully washable and reusable, saving you money on paper replacements for the life of the vehicle. Compatible with all 2006-2011 Yaris hatchback and sedan trims (CE, LE, S, Base) as well as the Canadian RS.
Key Features
Mandrel-Bent Aluminum Intake Tube — 6061 aluminum with black powder-coated finish. A smooth internal surface eliminates turbulence in the factory plastic airbox, improving airflow velocity.
High-Flow Dry Cone Filter — No oil required. Captures 95%+ of airborne particles without the contamination risk of oiled filters. Fully washable and reusable.
Sharper Throttle Response — Noticeably improved pedal feel, especially from a stop and when merging with the A/C on, where the Yaris needs it most.
Bolt-On Installation — Uses factory mounting points and all OEM sensor provisions. No cutting, drilling, or permanent modifications. 30-60 minutes with basic hand tools.
Factory ECU Compatible — Designed for the 1NZ-FE's MAF-based fuel system. The OEM ECU adapts automatically via fuel trim learning — no tune required.
All Trims, Both Bodies — Compatible with CE, LE, S, Base (USDM) and RS (Canada), in both hatchback and sedan body styles.
Specifications
Brand: FLASHARK
SKU: FLIS25031
Material: 6061 Aluminum tubing
Tubing Finish: Black powder-coated
Tube Diameter: 2.5" (63mm)
Filter Type: Dry (no oil required)
Filter Media: Cotton gauze
Filter Style: Cone
Filter Color: Red
Installation: Bolt-on, 30-60 minutes
Warranty: 1 Year
Package Includes
1x Black powder-coated 6061 aluminum mandrel-bent intake tube
1x Red dry cotton gauze cone air filter
1x Silicone coupler with stainless steel hose clamps
1x Mounting bracket and hardware kit
| Years | Make | Model | Trim | Engine | Body |
|---|---|---|---|---|---|
| 2006-2011 | Toyota | Yaris | CE | 1.5L 1NZ-FE DOHC I4 | Hatchback / Sedan |
| 2006-2011 | Toyota | Yaris | LE | 1.5L 1NZ-FE DOHC I4 | Hatchback / Sedan |
| 2006-2011 | Toyota | Yaris | S | 1.5L 1NZ-FE DOHC I4 | Hatchback / Sedan |
| 2006-2011 | Toyota | Yaris | Base | 1.5L 1NZ-FE DOHC I4 | Hatchback / Sedan |
| 2006-2011 | Toyota | Yaris | RS (Canada) | 1.5L 1NZ-FE DOHC I4 | Hatchback / Sedan |
Transmission: Compatible with both 5-speed manual and 4-speed automatic.
Q: Which Yaris models does this intake fit?
A: This kit fits all 2006-2011 Toyota Yaris models with the 1.5L 1NZ-FE engine. This includes the CE, LE, S, and Base trims in the US market, as well as the RS trim in Canada. Both hatchback (3-door and 5-door) and sedan body styles are compatible. The intake layout is identical across all trims and body styles for this generation.
Q: How much horsepower will I actually gain?
A: On a stock 2006-2011 Yaris 1.5L, expect 2-5 wheel horsepower. The 1NZ-FE makes 106 hp from the factory — it's an economy engine, not a performance platform. Claims of 10-15 HP from an intake alone on this engine are unrealistic. What you'll actually feel is sharper throttle response, especially from a stop and when merging onto the highway with the A/C running. That's where the stock intake hurts the Yaris most.
Q: Will this improve my fuel economy?
A: Some drivers report 1-2 MPG improvement at steady highway speeds, but results vary heavily with driving style. If you drive the car harder because the intake sounds better (which is very common), you won't see any gains in MPG. For maximum fuel economy, keep the stock intake and drive conservatively. This intake is about throttle response and driving enjoyment — improved MPG is a possible bonus, not a guarantee.
Q: Is the filter oiled or dry?
A: This kit uses a dry cotton gauze filter — no oil required. This is important because the 1NZ-FE uses a hot-wire MAF sensor that can be contaminated by filter oil, causing incorrect air/fuel readings and a check engine light. A dry filter eliminates that risk entirely while still providing 95%+ filtration efficiency.
Q: Will this make my Yaris louder?
A: Yes — you'll hear a deeper induction tone under throttle, especially above 3,000 RPM. At idle and steady highway cruise, the sound difference is minimal. If you want a quiet Yaris, keep the stock intake. If you want the 1.5L to finally sound like it's doing something when you accelerate, this kit delivers.
Q: Do I need an ECU tune after installation?
A: No. The factory 1NZ-FE ECU uses a MAF-based fuel management system with adaptive fuel trim learning. It will detect increased, smoother airflow and automatically adjust fueling — no reflash or piggyback required.
Q: Will the check engine light come on?
A: Not if installed correctly. A CEL after intake install is almost always due to a vacuum leak (loose hose clamp, unplugged vacuum line) or an MAF sensor connector that wasn't fully seated. Double-check all connections before starting the engine. If a CEL appears, scan the code — the most common on the Yaris is P0171 (lean) due to an unmetered air leak.
Q: How difficult is the installation?
A: Beginner-friendly. You'll need a 10mm socket and ratchet, a Phillips screwdriver, and a flathead screwdriver. The process: remove the factory airbox and intake tube (4 bolts + 1 hose clamp), mount the new bracket and heat shield, attach the intake tube with the silicone coupler, connect the MAF sensor and vacuum line, then secure the filter. Total time is 30-60 minutes for a first-timer. No cutting, drilling, or permanent modifications.
Q: Will this fit a 2012 or newer Yaris?
A: No. The 2012+ Yaris (XP130 chassis) uses a different intake layout and MAF sensor position, even though it shares the 1NZ-FE engine. This kit is designed specifically for the 2006-2011 XP90 generation.
Q: Does this fit the Scion xA or xB?
A: No. Although the Scion xA and first-gen xB share the 1NZ-FE engine, the intake plumbing routing and engine bay layout are different. This kit was designed for the Yaris engine bay and will not bolt into a Scion without modification.
Q: How do I clean and maintain the filter?
A: Inspect the filter every 15,000 miles or once a year. To clean: remove the filter, rinse from the inside out with low-pressure water, let it air-dry completely (never use compressed air), and reinstall. Mild soap and water work fine — no special cleaning kit required. Do not oil this filter. A properly maintained dry filter will last the life of the vehicle.
Q: Will this intake pass emissions or smog testing?
A: This intake is designed for off-road and performance use. It is NOT CARB-certified and may not pass a visual inspection in states with strict emissions requirements (California, New York, etc.). Check your local regulations before purchasing. The factory airbox must be reinstalled for smog testing in CARB states.
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