The ISR Performance Long Tube headers for VQ35DE are designed to replace your factory header and catalytic converter. These long tube headers are constructed with 304 brushes stainless steel and heavy duty flanges. Designed with a stepped primary, these headers are built to retain as much low and mid range torque as possible while allowing for good top end horsepower gains as well.
The innovative High Ground Clearance, "HGC" design places the collector in a position to maximize ground clearance without sacrificing performance.
Each header features 2 o2 bungs placed downstream of the collector so that you can utilize your factory upstream and downstream o2 sensors. The downstream o2 sensor bung utilizes a flow restrictor to help avoid CELs.
What’s in the Box:
- 2x Stainless Steel Long Tube Headers
- 2x 2 bolt exhaust gaskets
- 2x Head to manifold gaskets
- 4x o2 sensor bung plugs
- 4x Exhaust Nuts
- 4x Exhaust Bolts
Our new Compatibility checking feature is still being updated and revised. If you have questions about vehicle fitment, please contact us.
Will these fit an 08 hr without modifying them?
Yes, these fit both DE and HR engines.
Will these fit on my 2005 350z? Will I need the extended o2 harness? Will the harness be a plug and play type of deal? Thankyou.
Yes, these do fit the 05 350Z. We recommend using ISR's harness to make installation easier, but you can otherwise extend your harness manually if you're not against the wiring involved.
Will this fit the 2013 g37x
Hey Matt, ISR says it has not yet been tested on any AWD vehicles, but they don't believe it would fit.