ISR Performance HGC Long Tube Headers Nissan 350Z Z33 / Infiniti G35 | IS-SSHD-VQ35

Fitment: These headers are specifically designed for Nissan 350Z and Infiniti G35 with VQ35DE/HR engines. Some customers have also successfully installed them on 370Z and G37 as shown in the reviews. Features: Crafted from 304 brushed stainless steel and heavy - duty flanges, these long tube headers replace your factory header. The stepped primary design retains low and mid - range torque while increasing top - end horsepower. The innovative HGC design maximizes ground clearance without sacrificing performance. Each header has two o2 bungs downstream of the collector, allowing you to use your factory o2 sensors. You'll need to extend the primary o2 sensor harness to fit the new lower location. What's in the box: 2 stainless steel long tube headers, 2 2 - bolt exhaust gaskets, 2 head - to - manifold gaskets, 4 o2 sensor bung plugs, 4 exhaust nuts, and 4 exhaust bolts. Note: Check your harness before ordering. This product works only with early - model VQ35DE 4 - wire o2 sensors, not later 6 - wire ones. All ISR Performance products are for off - road use only.

Using these headers is straightforward. First, make sure your vehicle is a Nissan 350Z or Infiniti G35 with a VQ35DE/HR engine. Check your o2 sensor harness to ensure you have the early - model 4 - wire ones. Remove the factory header and install the new long tube headers using the included gaskets, nuts, and bolts. You'll need to extend the primary o2 sensor harness to reach the new location. When it comes to maintenance, since these headers are made of 304 brushed stainless steel, they're quite durable. However, it's a good idea to regularly inspect them for any signs of damage or corrosion, especially if you use your vehicle in harsh conditions. Remember, these headers are for off - road use only, so don't use them on public roads.