Description
Upgrade the airflow on your Infiniti G35 or FX35 with the STILLEN Z-Tube Intake. Designed to replace the factory intake tubing, this upgrade eliminates torn couplers, improves throttle response, and restores proper airflow for a more reliable and performance-oriented intake system.
Vehicle Fitment:
- Infiniti G35 Coupe (2003–2007)
- Infiniti G35 Sedan (2003–2006)
- Infiniti FX35 (2003–2008)
Key Features & Benefits:
- Constructed from durable roto-molded plastic for long-lasting performance
- Includes connections for all factory breather tubes
- Eliminates factory baffling, increasing airflow efficiency
- Adds up to 11 HP on G35 Sedan and 5 HP on G35 Coupe*
- Resolves P0171 lean codes caused by torn or fatigued factory couplers
- Silicone couplers included to prevent future tears
- Limited lifetime warranty for peace of mind
- Not for sale in California
Performance Details:
The factory Infiniti intake tube is prone to fatigue and cracking over time, which can allow unmetered air to bypass the Mass Air Flow sensor. This often triggers a P0171 lean bank 1 check engine light. The STILLEN Z-Tube Intake eliminates this weak point by replacing the couplers with high-quality silicone, providing consistent airflow and preventing future lean codes.
By removing the factory baffling, the Z-Tube also improves throttle response and mimics the intake efficiency of the Nissan 350Z’s VQ35 V6 engine, providing a slightly sportier induction sound without compromising drivability.
Upgrade your 2003-2007 Infiniti G35 or 2003-2008 FX35 with the STILLEN Z-Tube Intake — the permanent solution to cracked couplers, lean codes, and restricted airflow.
*Results may vary depending on vehicle condition and tuning.
