Brand New ISR Long Tube Headers with O2 Sensor Extensions. These high-performance headers are specifically designed for the Infiniti G35 and Nissan 350Z with the VQ35DE engine. Made from durable stainless steel, they offer improved exhaust flow, increased horsepower, and that sought-after deep exhaust note. The set includes O2 sensor extensions for easy installation. These headers are brand new, never installed, and in perfect condition. Ideal for anyone looking to upgrade their vehicle’s performance. Fast shipping available! Don’t miss out on this great deal for your G35 or 350Z.