Cold Air Intake System for Nissan Sentra (2005-2006) with 1.8L 4 Cylinder Engine Chrome

Stop suffocating your QG18DE with the restrictive factory airbox and let it finally breathe.

Performance Cold Air Intake System for 2005-2006 Nissan Sentra 1.8L (QG18DE)

The 1.8L QG18DE in the B15 Sentra is a reliable commuter engine, but it is severely choked by Nissan's factory intake design. To meet strict noise regulations, the stock system forces air through a maze of plastic baffles and a restrictive accordion tube. This design creates turbulence and heat soak, resulting in that notorious "sluggish" feeling when you try to pass on the highway.

This Cold Air Intake System replaces that entire restrictive assembly with a smooth, mandrel-bent aluminum tube. By straightening the airflow path, we allow the engine to inhale a larger volume of cooler, denser air directly. The result is a noticeable improvement in throttle response, eliminating the hesitation you feel with the stock "silencer" box.

Why You Need This Upgrade

• Deep Intake Growl: Deletes the sound-deadening resonator box to release a throaty, aggressive induction tone under heavy acceleration.
• Instant Throttle Response: The smooth aluminum piping removes air turbulence, allowing the engine to react faster when you hit the gas.
• Show-Car Aesthetics: Replaces the dull, dusty plastic engine cover look with polished chrome piping and a high-contrast performance filter.
• Factory Safe: Engineered to maintain safe Air/Fuel ratios across the power band, preventing "lean" codes or check engine lights.

Technical Specifications

Installation & Fitment Notes

This Cold Air Intake is a direct bolt-on replacement for the OEM airbox. Critical MAF Sensor Note: The Nissan QG18DE Mass Air Flow sensor is extremely sensitive. When transferring the sensor from the stock tube to the new intake, handle it with extreme care and ensure the O-ring is seated perfectly to avoid rough idle issues. We recommend disconnecting the negative battery terminal for 15 minutes during install to allow the ECU to relearn the new airflow parameters.

Unleash the hidden potential of your Nissan Sentra and upgrade your airflow today.