Cold Air Intake for 2005-2013 Lexus IS 250 2.5L V6 /2006-2011 IS 350 3.5L V6

2005-2013 Lexus IS 250 Cold Air Intake for the 2.5L V6 (4GR-FSE) and 2006-2011 IS 350 3.5L V6 (2GR-FSE)

The factory intake on the IS250 and IS350 was engineered around quiet luxury, and the airflow compromise it created is exactly what this kit removes. This Flashark cold air intake for the 2005-2013 Lexus IS 250 (2.5L V6, 4GR-FSE) and the 2006-2011 IS 350 (3.5L V6, 2GR-FSE) replaces the bulky airbox, the dense paper element, and the narrow intake tubing with a mandrel-bent aluminum pipe and a high-flow red cone filter — sharper throttle response, a stronger pull between 3,000 and 6,000 RPM, and the V6 induction note the stock system was built to suppress.

Everything needed for the swap is in the box: the powder-coated black pipe with its CNC-machined aluminum MAF housing, the dry cotton gauze cone filter, a straight coupler, three stainless steel hose clamps, an anti-vibration mount, and the mounting hardware. It installs as a true bolt-on job with basic hand tools — no cutting, no welding, no drilling — and it reuses your factory MAF sensor, so no tune is required. Plan on about 30-90 minutes of work, depending on your experience and workspace.

Specifications

Key Features

• Replaces the factory airbox and plastic intake tract: the mandrel-bent aluminum pipe takes the place of the stock airbox and intake tube, feeding the V6 through a high-flow red cone filter instead of a dense paper element.
• Sharper throttle response: with the restriction out of the way, the V6 feels alive from the first press of the pedal — no hesitation, no lag.
• Stronger mid-range pull: the IS250 and IS350 pull harder between 3,000 and 6,000 RPM, which is where these engines spend their time in spirited driving.
• V6 induction sound: the factory airbox is built to keep the 4GR-FSE and 2GR-FSE quiet, and this kit opens up the intake note you hear under acceleration.
• Low-load efficiency: freer airflow at light throttle supports more efficient combustion, while real-world fuel economy still tracks your driving habits more than any single part.
• Reusable filter, not a 15,000-mile consumable: the dry cotton gauze cone filter is washable and reusable, so there is no $30+ OEM paper element to buy every 15,000 miles.
• Factory MAF sensor retained: the pipe carries a CNC-machined aluminum MAF housing integrated into it, so your factory sensor mounts and reads accurately without a tune for a bolt-on install.
• Complete bolt-on hardware: powder-coated aluminum pipe, silicone coupler, three stainless steel clamps, M6 anti-vibration mount, hex bolts, lock nut, washer, and a hex key — no cutting, welding, or fabrication.

Who This Kit Is For

This Flashark cold air intake replaces the factory airbox and plastic intake tube on the 2005-2013 Lexus IS250 2.5L V6 and the 2006-2011 Lexus IS350 3.5L V6. It is for owners who want quicker throttle response, a deeper V6 induction note, and one washable filter instead of a paper element every 15,000 miles — installed in their own driveway with hand tools.

✓ For you if…

• you want a first bolt-on that makes an IS250 or IS350 feel more responsive from the driver's seat
• you are done buying a fresh $30+ paper element every 15,000 miles and would rather wash and reuse one filter
• you want a deeper induction note under acceleration without changing the exhaust
• you intend to keep the factory MAF sensor and the factory engine calibration
• you confirmed your engine code and want a matching rear-section upgrade — the 2006-2013 Lexus IS250 / IS350 cat-back exhaust is built for the same cars

✗ Not for you if…

• you need an OEM-replacement paper filter or a stock intake hose
• you expect a measurable MPG gain from an intake alone
• you drive an IS-F 5.0L V8 or run a modified intake manifold
• you live in California or another CARB-adopting state — this kit does not carry an EO
• you regularly ford deep water without relocating the filter

Check Before Ordering

• 1. Vehicle: Confirm your year, model, and engine code — a 2005-2013 IS250 with the 4GR-FSE 2.5L V6, or a 2006-2011 IS350 with the 2GR-FSE 3.5L V6, either one on its factory intake manifold. If your car is not on that list (the IS-F 5.0L V8, for example), send us your VIN before ordering and we will confirm fitment for your exact build.
• 2. Intake style: This kit replaces the factory airbox and plastic intake tract with a larger-bore aluminum pipe and a high-flow cone filter. If you are still weighing intake designs before you buy, start with what a cold air intake actually changes.
• 3. Filter and maintenance: The included element is a dry cotton gauze cone, so there is no oiling step — wash it, let it dry completely, and put it back in. A washable filter is the reason this kit does not need a $30+ paper replacement every 15,000 miles.
• 4. Sensors and calibration: The kit retains your factory MAF sensor and its mounting, and no tune is required for the bolt-on install. If a tune is in your plans anyway, our guide on whether an intake needs a tune explains what changes and what does not.
• 5. Emissions rules: There is no CARB Executive Order for this kit. It is not legal for sale or use in California or in other states that have adopted California's emissions standards, so check your state requirements before ordering.
• 6. Install conditions: Bolt-on with basic hand tools in roughly 30-90 minutes, and no cutting or drilling. Avoid deep water crossings — water ingestion can hydrolock the engine.

What's in the Box

Every part needed for the swap ships in the box:

• Intake pipe × 1 — mandrel-bent aluminum, powder-coated black, with an integrated MAF housing
• High-flow red cone air filter × 1 — dry cotton gauze, with clamp
• Straight rubber silicone coupler × 1
• Stainless steel hose clamp (large) × 2
• Stainless steel hose clamp (small) × 1
• M6 threaded anti-vibration rubber mount × 1
• M4 hex bolts × 2, M6 lock nut × 1, washer × 1
• Hex key (Allen wrench) × 1

You reuse your factory MAF sensor, and the only tools you need beyond the included hex key are basic hand tools. Shopping for more than one car? Browse the full range of Flashark air intake kits.

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