Infiniti QX56 Throttle Body Spacer - aFe - Silver Bullet, Serrated/Helix - 11-13. A precision-machined throttle body spacer designed for the 5.6L V8 in the QX56 to refine intake airflow and improve throttle response while maintaining factory fitment.

This Silver Bullet spacer combines a serrated/helix internal profile (US PAT 07055513) to induce controlled air turbulence in the intake manifold. The design helps increase intake pressure at the combustion chamber entrance and reduces the intake whistle commonly found with helix-only spacers. Machined from 6061-T6 billet aluminum for strength and light weight, the part includes gaskets and uses all factory mounting locations for straightforward installation. A silicone coupler accommodates thermal expansion, movement and vibration for durability under real-world driving conditions.

Features

• Serrated/Helix internal profile (US PAT 07055513) to optimize intake airflow
• Precision machined from 6061-T6 billet aluminum
• Includes gaskets and uses factory mounting points for a direct-fit install
• Silicone coupler for expansion, movement and vibration resistance
• Designed specifically for Infiniti QX56 2011–2013 5.6L V8

If you have questions or want help confirming fitment, call us directly. We offer installation and customization at both our Austin, Texas and Los Angeles, California-area locations—call 512-982-9393 (TX) or 562-981-6800 (CA). Our shop can install this spacer on premises at both locations. If you are considering multiple items, contact us for shipping discounts.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov