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ISR Performance HGC Long Tube Headers, VQ35DE VQ35HR VQ37VHR - Nissan 350Z 370Z / Infiniti G35 G37 - IN STOCK NOW!!!

Manufacturer: ISR Performance
Product # {{ productPartNumber }}
In stock

$ 825 00
$ 742 50
10% off

Manufacturer: ISR Performance
Product # {{ productPartNumber }}
In stock
Product not eligible for promotional or discount codes.

Customer Questions

Question:

Would I need o2 extensions for 2006 g35 coupe? - Darius

Answer:

Hi Darius, all vehicles need the O2 sensor harnesses extended for long tube headers. They just only make plug-and-play harnesses for the 03. So for everything else, you have to extend it manually.

Question:

Will these fit a 2009 g37 x - Kyle Adcock

Answer:

Yes, these fit G37 AWD.

Question:

Will these fit a 2009 370 coupe? - Tyler Exum

Answer:

Hi Tyler, yes they will

Reviews

Rated 4.6/5 based on 7 customer reviews

I put these on my 2013 G37S Sedan and they’re amazing. Welds are immaculate. The inside welds that bolt near the engine head where cleaned up very nicely. 0 Fitment issues. Fill fit any VQ37HR!!

Installed these on my 2018 370z and they woke the car up! I highly recommend installing at a shop if you do not have the confidence or the tools. Fitment was perfect and had no issues pairing this with my motordyne catback e370. Definitely felt an increase in power, went from art pipes to long tube headers which replaced them. For the price to power its worth it. In order for these to work on the 370z you must extend your primary afr sensor, i recommend nisformance for their extensions

Installed on my ‘05 g35 rev up, and dang these are awesome. Love the exhaust note, and power is there. Quality is truly there!

On Sale
This product may not be legal for use on emissions-controlled motor vehicles in your area or region. Please check your local, state, and federal laws before ordering. Learn More

This product is intended for off-road/competition use, and may not be legal for use on highway or street vehicles in your area. Some products sold by Concept Z Performance may solely be used on vehicles in sanctioned competition, which may never be used upon a public road or highway, unless permitted by specific regulator exemptions (such as CARB E.O.).

It is the responsibility of the installer and/or user of the product to ensure that it is used in compliance with all applicable laws and regulations. Concept Z Performance holds no responsibility, either implied or otherwise, for any mechanical, electrical, or emissions failure resulting from using any aftermarket or performance products. Buyer assumes all risk of injury or loss which may result from using this product in a manner for which it is not intended.

Additional resources:
EPA Tampering Policy
SEMA Emissions Requirements by State

Options

$ 825 00
$ 742 50
10% off

Product not eligible for promotional or discount codes.

Description

The ISR Performance Long Tube headers for VQ 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

Because these eliminate the flange between the headers and cats, these fit both VQ35DE as well as VQ35HR & VQ37VHR. Our customers have reported that they fit AWD and RWD, 350Z through Q50, LHD and RHD, as long as they have a VQ.

Compatibility

Our new Compatibility checking feature is still being updated and revised. If you have questions about vehicle fitment, please contact us.

Customer Questions

Question:

Would I need o2 extensions for 2006 g35 coupe? - Darius

Answer:

Hi Darius, all vehicles need the O2 sensor harnesses extended for long tube headers. They just only make plug-and-play harnesses for the 03. So for everything else, you have to extend it manually.

Question:

Will these fit a 2009 g37 x - Kyle Adcock

Answer:

Yes, these fit G37 AWD.

Question:

Will these fit a 2009 370 coupe? - Tyler Exum

Answer:

Hi Tyler, yes they will

Reviews

Rated 4.6/5 based on 7 customer reviews

I put these on my 2013 G37S Sedan and they’re amazing. Welds are immaculate. The inside welds that bolt near the engine head where cleaned up very nicely. 0 Fitment issues. Fill fit any VQ37HR!!

Installed these on my 2018 370z and they woke the car up! I highly recommend installing at a shop if you do not have the confidence or the tools. Fitment was perfect and had no issues pairing this with my motordyne catback e370. Definitely felt an increase in power, went from art pipes to long tube headers which replaced them. For the price to power its worth it. In order for these to work on the 370z you must extend your primary afr sensor, i recommend nisformance for their extensions

Installed on my ‘05 g35 rev up, and dang these are awesome. Love the exhaust note, and power is there. Quality is truly there!

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