Engine: VQ35HR. Nissan 350Z with VQ35HR. Infiniti G35 with VQ35HR. ISR Performance Nissan 350Z HR / Infiniti G37 Silicone Air Intake Tubes. ISR Performance Silicone Air Intake Tubes for the Nissan Z and Infiniti G chassis with HR motors are made of high grade, heat-resistant silicone to prevent increased temperatures in the intake caused by excess heat in the engine bay.
