Cold Air Intake Kit for 2002-2006 Nissan Altima/Maxima S/SE/SL/SE-R Sedan 4-Door 3.5L V6

Fitment:

2002-2006 Nissan Altima with 3.5L V6

Specifications:

• Brand: Flashark
• Type: Cold Air Intake Kit
• Include 1X Performance Cold Air Intake
• Style: Cold Air Intake
  
• Material: Aluminum
  
• Filter: Washable and Reusable

Why Builders Choose This Kit:

• True Plug-Play Fit – Precision-molded for GS/RS/LS/GS-R hatchbacks & sedans
  
• OEM+ Sound – Amplifies VTEC crossover growl, zero drone at cruise
  
• Dyno-Proven – 8-12 WHP gains on stock B18/ZC engines (tested @ 68°F/20°C)

Features:

• Air intake kits can help your engine draw more cold air, resulting in better throttle response and higher explosive horsepower output. The intake pipe is made of lightweight aluminum 
• Allow maximum airflow through the stock manifold system and an Intense, deep, sporty Sound
• Improve throttle response throughout low and mid RPM. The filter is upgraded to high high-quality, washable, and reusable cone air filter
• This air intake kit will increase 7-10% of Horsepower and 6-8% of Torque
• Easy to install and easy to fit with simple tools
• No additional parts will be needed for installation after you purchase this kit
• All mount accessories are included, the same as in the picture

2002–2006 Nissan Altima / Maxima 3.5L V6 Cold Air Intake FAQ

Q1: What vehicles does this 3.5L V6 cold air intake fit?

A1: This cold air intake kit is designed for 2002–2006 Nissan Altima and Nissan Maxima models equipped with the 3.5L VQ35DE V6 engine. Always confirm engine type before purchasing, as 2.5L models use a completely different intake system.

Q2: Does this intake fit both Altima and Maxima 3.5L?

A2: Yes, both 3.5L Altima and 3.5L Maxima models using the VQ35DE engine are compatible. However, engine bay layout differs slightly, so proper installation alignment is important.

Q3: Will this intake work on the VQ35DE engine?

A3: Yes, this intake is specifically designed for the Nissan VQ35DE 3.5L V6 engine platform used in early 2000s Altima and Maxima models.

Q4: Do I need a tune after installing this cold air intake?

A4: A tune is not required for basic installation. The ECU can adapt to increased airflow. However, tuning can improve throttle response and performance if combined with exhaust or other modifications.

Q5: How much horsepower does a 3.5L VQ35DE intake add?

A5: Typical gains are around 5–10 horsepower depending on supporting modifications and engine condition. The most noticeable change is improved throttle response and intake sound rather than large peak power increases.

Q6: Will this intake make my Altima or Maxima louder?

A6: Yes. You will hear a deeper intake tone and stronger induction sound during acceleration, especially at higher RPMs compared to the factory airbox.

Q7: Does this intake cause check engine light (CEL)?

A7: A properly installed intake should not trigger a CEL. If it happens, it is usually caused by vacuum leaks, loose clamps, or incorrect MAF sensor installation.

Q8: Is this compatible with CVT or automatic transmission?

A8: Transmission type does not affect intake fitment. However, most 3.5L VQ35DE models in this generation use a traditional automatic transmission, not CVT.

Q9: Will this improve acceleration?

A9: Yes, throttle response improves due to reduced intake restriction. Acceleration feel becomes more responsive, especially in mid-range RPM.

Q10: Does a cold air intake improve fuel economy?

A10: Fuel economy gains are not guaranteed. Driving style, tire condition, and maintenance have a much larger impact on MPG than intake modification alone.

Q11: Will this intake cause heat soak issues?

A11: Some heat soak can occur at idle or in traffic because of engine bay temperature. Once the vehicle is moving, airflow helps reduce intake air temperature.

Q12: Is this intake safe for daily driving?

A12: Yes, it is safe for daily use when installed correctly. It does not negatively affect normal driving or engine reliability.

Q13: Is installation difficult?

A13: Installation is straightforward and usually takes 45–90 minutes using basic hand tools. No cutting or permanent modification is required.

Q14: Will this work with stock MAF sensor?

A14: Yes, the intake is designed to retain the factory MAF sensor. Correct installation is critical for proper air-fuel readings and smooth engine operation.

Q15: Is this intake worth it on a VQ35DE engine?

A15: It is best viewed as a sound, response, and airflow upgrade. The biggest benefits are improved throttle response, stronger induction sound, and a more aggressive driving feel compared to the stock airbox.