Product Details
Fitment
FAQ
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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
| Spec | Detail |
|---|---|
| Material | Aluminum |
| Pipe Finish | Powder-Coated Black |
| Air Filter | Cone, high-flow, red dry cotton gauze |
| Filter Type | Dry (no oil required) |
| MAF Housing | CNC-machined aluminum (integrated into pipe) |
| Silicone Coupler | Straight rubber sleeve (direct coupler) |
| Hose Clamps | Stainless steel (3× total: 2 large + 1 small) |
| Anti-Vibration Mount | 1× M6 threaded rubber mount |
| Hardware | M4 hex bolts × 2, M6 lock nut × 1, washer × 1 |
| Tools Included | 1× Hex key (Allen wrench) |
| Installation | 100% Bolt-On — No welding / No drilling |
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.
Shipping & Returns
Free U.S. Shipping: Orders are typically processed within 1–2 business days and delivered within 7–9 business days. Additional charges may apply to remote areas.
30-Day Returns: Unopened and unused items in their original packaging may be returned within 30 days of receipt. Return shipping is covered for verified quality issues.
Worry-Free Delivery: Optional protection against eligible loss, theft, delay, or transit damage is available at checkout.
| Year | Make | Model | Engine |
|---|---|---|---|
| 2005–2013 | Lexus | IS250 | 2.5L V6 (4GR-FSE) |
| 2006–2011 | Lexus | IS350 | 3.5L V6 (2GR-FSE) |
⚠️ Note: Does NOT fit Lexus IS-F (5.0L V8). Does NOT fit IS250/IS350 with modified intake manifolds. Verify your exact engine code before ordering.
Lexus IS250 / IS350 Cold Air Intake FAQs (2005-2013)
Q1: Is this cold air intake legal in my state?
A1: This kit does not carry a CARB Executive Order, so it is not legal for sale or use in California or in other states that have adopted California's emissions standards. Everywhere else, check your own state and local rules before ordering.
Q2: Will this cold air intake fit my Lexus IS250 or IS350?
A2: It fits the applications in the Fitment table above: 2005-2013 Lexus IS250 with the 4GR-FSE 2.5L V6 and 2006-2011 Lexus IS350 with the 2GR-FSE 3.5L V6, both on factory intake manifolds. It does not fit the IS-F 5.0L V8, and it does not fit an IS250 or IS350 running a modified intake manifold. If your year, model, or engine code is not in the table, message us with your VIN before ordering.
Q3: How much horsepower will this cold air intake add?
A3: Typical intake-only gains for this application are approximately 5-12 horsepower, and most of what you feel lands in throttle response and induction sound rather than peak power. Actual results depend on the vehicle, its calibration, the installation, and any supporting hardware. If you are weighing the whole idea first, read are cold air intakes worth it.
Q4: Will a cold air intake improve my MPG?
A4: MPG is dominated by driving habits, and an intake alone cannot guarantee a measurable gain. Expect the main benefit as throttle response and intake tone rather than fuel economy; any efficiency benefit shows up in normal, light-throttle driving, and aggressive acceleration erases it.
Q5: Will this intake void my warranty?
A5: Under the Magnuson-Moss Warranty Act, an aftermarket part cannot void your factory warranty unless it is proven to have caused the failure. This kit is designed as a direct bolt-on replacement that keeps your factory sensors and connections. Our warranty guide covers how that works in practice.
Q6: Will it throw a check engine light (CEL)?
A6: A correctly installed intake should not trigger a check engine light. This kit retains the factory MAF sensor and its mounting, which keeps MAF calibration inside the OEM design envelope. When a light does appear after an intake install, it usually traces back to a loose clamp, a vacuum leak, or incorrect sensor seating — our seven-point idle and CEL checklist walks through each one.
Q7: Do I need a tune after installing this intake?
A7: No tune is required for a bolt-on install that retains the factory sensors, and the ECU can adapt to the airflow change. A performance tune can still help you get the most out of the kit, especially on an IS350.
Q8: Will this intake work with the factory MAF sensor?
A8: Yes. The pipe carries a CNC-machined aluminum MAF housing integrated into it, and the kit is designed to retain and properly mount your factory MAF sensor so airflow readings stay accurate.
Q9: Is this a true cold air intake or a short ram intake?
A9: It is built as a cold air intake system. The kit replaces the factory airbox and plastic intake tract with a larger-bore aluminum pipe and a high-flow cone filter, which improves airflow while reducing exposure to hot engine air compared with the stock airbox design.
Q10: Is it safe in rain or deep water?
A10: Normal rain driving is fine. Avoid deep water crossings, because water ingestion can cause hydrolock and severe engine damage — if you ford water regularly, keep the factory airbox in place. How water reaches an engine explains the failure mode in detail.
Q11: How do I clean the filter, and do I need to oil it?
A11: The included red cotton gauze cone filter is a dry element, so there is nothing to re-oil. Wash it, let it dry completely, and reinstall it — it is made to be washed and reused rather than replaced. Follow our filter cleaning walkthrough for the wash-and-dry procedure.
Q12: What does this intake sound like on an IS250 or IS350?
A12: You hear a deeper induction tone and stronger intake noise under acceleration, most noticeably above 3,000 RPM, and it quiets down at a steady cruise. Sound is subjective, but throttle response and intake tone are the two changes owners notice most with this kit.
Q13: Will this intake cause heat soak in traffic?
A13: Some heat soak is normal in stop-and-go traffic, since intake air warms up whenever the car is not moving. Once you are rolling, airflow improves substantially compared with the stock intake, which is where the difference shows up.
Q14: How hard is the install, and can I do it myself?
A14: It is a bolt-on job with basic hand tools and no cutting or permanent modification, so a driveway or garage install is realistic. Typical time is about 30-90 minutes depending on your experience and workspace.
Q15: What is included, and what do I still need?
A15: The kit ships complete: intake pipe with integrated MAF housing, high-flow red cone filter, silicone coupler, three stainless steel hose clamps, M6 anti-vibration mount, mounting hardware, and a hex key. You reuse your factory MAF sensor, and the only extras you need are basic hand tools.
Fast Shipping Policy
Your order will be dispatched within 1-2 business days, and the package will arrive within your order's estimated date. Click for Shipping Policy
Easy Return Policy
Every order comes with a 30-day free return, provided the item is brand new, uninstalled, and in its original packaging. We cover return shipping for quality issues. Refunds are processed within 3-5 business days. Click for Return Policy
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