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2013-2018 Nissan Altima 2.5L QR25DE Cold Air Intake
Give your 2013-2018 Nissan Altima 2.5L QR25DE a freer-breathing aluminum intake path where the factory airbox and plastic intake tract used to be. This Flashark cold air intake is built as a direct bolt-on for S, SV, SL, and SR four-cylinder Altimas — including the 2017 Altima SR — pairing mandrel-bent, powder-coated aluminum tubing with a washable dry cone filter to sharpen throttle response, strengthen mid-range pull, and bring out an induction note the factory airbox keeps muted. All mounting hardware is included, and the install takes about 60–90 minutes with basic hand tools.
By moving filtration out of the restrictive factory airbox, the intake is designed to feed the engine cooler outside air, with the changes you notice most arriving as crisper throttle response, a stronger 2,500–5,000 RPM pull where daily driving happens, and a deeper intake tone under acceleration. No cutting, no welding, no fabrication — just a socket set, an afternoon window, and a cleaner-looking engine bay.
Specifications
| Spec | Detail |
|---|---|
| Brand | Flashark |
| Type / Style | Cold Air Intake |
| Quantity | 1x performance cold air intake kit |
| Part Number (SKU) | FLIS25066 |
| Main Pipe Diameter | 76 mm (3") |
| MAF Tube Diameter | 70 mm — factory replacement spec |
| Material | Aluminum piping |
| Pipe Finish | Powder-coated black |
| Air Filter | Cone, high-flow, red dry cotton gauze |
| Filter Type | Dry (no oil required), washable and reusable |
| MAF Housing | CNC-machined aluminum |
| Silicone Couplers | Multi-ply high-temp silicone |
| Hose Clamps | Stainless steel |
| Hardware | All mounting hardware included |
| Installation | 100% bolt-on — no welding, no drilling |
| Fitment Design | Vehicle-specific |
Key Features
- Direct bolt-on replacement for the factory airbox and intake tract: the aluminum tube and high-flow cone filter swap in place of the restrictive stock airbox and plastic intake tubing, with all mounting hardware included — no cutting, welding, or fabrication required.
- Mandrel-bent, powder-coated aluminum tubing: smooth bends keep the intake path consistent, the black powder coat resists corrosion, and multi-ply high-temp silicone couplers with stainless clamps seal every joint.
- CNC-machined 70 mm MAF housing: the aluminum MAF housing matches the factory replacement spec and retains the original sensor position and bore, so the factory MAF sensor transfers straight in.
- Washable, reusable dry cone filter: the red cotton-gauze element rinses clean with no filter oil required, so you re-use one filter instead of buying disposable paper elements over the life of the car.
- Expected response and pull: typical seat-of-the-pants changes are sharper throttle response and stronger mid-range pull in the 2,500–5,000 RPM range where most daily driving happens, with results varying by vehicle condition and ECU calibration.
- Audible induction note: replacing the enclosed factory airbox lets you hear the QR25DE's intake under load — a deeper intake tone during acceleration and a rush of air at higher throttle openings.
- Light-load efficiency potential: smoother airflow can support more complete combustion under light load; real-world MPG still depends far more on driving habits, tire condition, and vehicle maintenance.
Who This Kit Is For
This Flashark cold air intake replaces the factory airbox and intake tube on 2013-2018 Nissan Altima S, SV, SL, and SR models with the 2.5L QR25DE four-cylinder engine — a first bolt-on upgrade for owners who want a more responsive, better-sounding daily driver without touching the rest of the powertrain.
- ✓ For you if you daily-drive a 2.5L Altima and want crisper throttle response and a more audible intake note
- ✓ For you if you want a washable, reusable filter instead of disposable paper elements
- ✓ For you if you want a hand-tools-only install finished in about 60–90 minutes
- ✓ For you if you have confirmed your engine is the 2.5L QR25DE four-cylinder, not the 3.5L V6
- ✗ Not for you if your Altima has the 3.5L V6 engine or is a Hybrid model
- ✗ Not for you if you expect a guaranteed horsepower or MPG gain from an intake alone
- ✗ Not for you if you live in California or another CARB-adopting state and need a street-legal part (see the Compliance Notice below)
Still weighing whether an intake is worth it? Read Are Cold Air Intakes Worth It? before you order, or browse the full range of Nissan Altima cold air intake kits.
Check Before Ordering
- Vehicle: exact fit for 2013-2018 Nissan Altima S, SV, SL, and SR with the 2.5L QR25DE four-cylinder. Trim names alone do not always confirm the engine — verify your displacement is 2.5L before ordering. If your vehicle isn't listed, browse the full range of Nissan cold air intake kits or message us with your VIN first.
- Intake type: this kit replaces the factory airbox and intake tract with an aluminum tube and a high-flow cone filter, so expect visible engine-bay changes and an intake sound the stock airbox does not produce.
- Filter care: the included filter is a dry cotton-gauze unit — clean it when dirt loads the pleats and never apply filter oil, since residue can contaminate the MAF sensor. See How to Clean Your Cold Air Intake Filter for the full process.
- Sensors: the factory MAF sensor transfers into the supplied 70 mm CNC-machined housing — install it in the correct orientation, tighten every coupler, and avoid touching the sensing element.
- Legality: not legal for sale or use in California (and other CARB-adopting states). Confirm your state and local emissions requirements before ordering a part for a street-driven vehicle.
- Install and water crossings: plan on a 100% bolt-on install of about 60–90 minutes, then check that the pipe and filter clear the radiator fan, battery, bodywork, and hot components. Avoid deep water crossings — water ingestion through the filter can cause hydrolock and severe engine damage.
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.
Fitment
This kit fits the following 2013-2018 Nissan Altima four-cylinder models:
| Year | Model | Trim | Engine | Aspiration |
|---|---|---|---|---|
| 2013-2018 | Nissan Altima | S | 2.5L I4 (QR25DE) | Naturally aspirated |
| 2013-2018 | Nissan Altima | SV | 2.5L I4 (QR25DE) | Naturally aspirated |
| 2013-2018 | Nissan Altima | SL | 2.5L I4 (QR25DE) | Naturally aspirated |
| 2013-2018 | Nissan Altima | SR | 2.5L I4 (QR25DE) | Naturally aspirated |
It does not fit the Altima 3.5L V6 or Altima Hybrid — those use different intake routing and engine-management components.
2013–2018 Nissan Altima 2.5L Cold Air Intake FAQ
Q1: What Nissan Altima models does this cold air intake fit?
A1: This Flashark cold air intake is designed for 2013, 2014, 2015, 2016, 2017, and 2018 Nissan Altima S, SV, SL, and SR models equipped with the naturally aspirated 2.5L QR25DE four-cylinder engine. Verify the engine displacement before ordering because trim names alone do not always confirm engine compatibility.
Q2: Does this intake fit a 2013 Nissan Altima 2.5L?
A2: Yes. A 2013 Nissan Altima equipped with the 2.5L QR25DE engine is included in the confirmed fitment. The kit replaces the factory airbox and intake tubing with a vehicle-specific aluminum intake pipe, high-flow cone filter, heat shield, and MAF housing.
Q3: Will this cold air intake fit a 2014 or 2015 Nissan Altima?
A3: Yes, provided the 2014 or 2015 Altima has the 2.5L four-cylinder engine. It fits compatible S, SV, SL, and SR trims, but it does not fit a 3.5L V6 or Hybrid model because those vehicles use different intake routing and engine-management components.
Q4: Does this intake fit a 2018 Nissan Altima 2.5?
A4: Yes. A 2018 Nissan Altima S, SV, SL, or SR with the 2.5L QR25DE engine is included in the listed fitment. Confirm that the vehicle has not been converted with an incompatible aftermarket MAF housing, throttle body, or custom intake arrangement.
Q5: Will this intake fit a Nissan Altima 3.5L V6?
A5: No. This intake is specifically designed for the 2.5L four-cylinder QR25DE engine and does not fit an Altima equipped with the 3.5L V6. The V6 uses different tubing dimensions, airflow requirements, throttle-body placement, and engine-bay routing.
Q6: Does this intake fit the Nissan Altima Hybrid?
A6: No. The product is not compatible with Nissan Altima Hybrid models. Hybrid vehicles use a different engine and intake configuration, so they require parts specifically designed for the hybrid powertrain.
Q7: What is included with the Flashark Altima cold air intake kit?
A7: The kit includes a powder-coated aluminum intake pipe, a high-flow dry cone filter, a steel heat shield, a CNC-machined MAF housing, multi-ply silicone couplers, stainless-steel clamps, and the required mounting hardware. It is designed as a complete vehicle-specific installation rather than a generic pipe kit.
Q8: Does a 2013–2018 Nissan Altima cold air intake require a tune?
A8: A tune is not normally required when the intake is installed correctly with the supplied 70 mm MAF housing and the original sensor is transferred as intended. The factory ECU can generally adjust to a modest airflow change. A tune may become useful if the intake is combined with major exhaust, camshaft, throttle-body, or forced-induction modifications.
Q9: Will the intake cause a P0101 code or check engine light?
A9: A properly installed intake should not automatically cause a P0101 code or check engine light. Nissan vehicles can be sensitive to MAF contamination, air leaks, incorrect sensor orientation, dirty throttle bodies, and damaged wiring. Install the MAF sensor in the correct direction, tighten every coupler, and avoid touching the sensing element.
Q10: How much horsepower can a cold air intake add to a Nissan Altima 2.5?
A10: Actual horsepower gains vary according to engine condition, ambient temperature, ECU correction, exhaust flow, and testing method. On an otherwise stock QR25DE engine, the most noticeable benefits are usually a stronger induction sound and slightly sharper throttle response rather than a large guaranteed peak-horsepower increase.
Q11: Is a cold air intake worth it on a 2.5L Nissan Altima?
A11: It can be worthwhile for drivers who want a washable filter, a smoother aluminum intake path, a sportier engine sound, and a more performance-oriented engine-bay appearance. The factory intake is sufficient for normal transportation, so this upgrade should be viewed as a modest airflow and sound improvement rather than a major standalone performance modification.
Q12: Will this intake make my Nissan Altima louder?
A12: Yes. Replacing the enclosed factory airbox with a high-flow cone filter makes the QR25DE engine's induction sound easier to hear. Expect a deeper intake tone during acceleration and a louder rush of air at higher throttle openings. Because the 2.5L Altima is naturally aspirated, the sound is intake noise rather than turbo spool.
Q13: Will a cold air intake improve gas mileage?
A13: A fuel-economy improvement is not guaranteed. Reduced intake restriction may help efficiency under some light-load driving conditions, but speed, traffic, tire pressure, CVT condition, engine maintenance, and throttle habits have a much greater effect on MPG. More aggressive acceleration after installation can offset any potential efficiency gain.
Q14: Is the included filter washable, and does it require oil?
A14: Yes. The included red cotton-gauze filter is washable and reusable, and the product specifications identify it as a dry filter that does not require oil. Clean it when dirt begins to load the pleats, allow it to dry completely, and do not apply filter oil because excess residue could contaminate the MAF sensor.
Q15: How difficult is the intake installation?
A15: The kit is designed as a 100% bolt-on installation with no drilling, welding, or fabrication required. Most owners with basic hand tools can complete the job in approximately 60–90 minutes. Carefully transfer the factory MAF sensor, tighten all clamps, reconnect every hose, and check that the pipe and filter do not contact the radiator fan, battery, bodywork, or hot engine components.
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
Worry-Free Delivery Protection
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