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SPDZ1 Long Tube Headers - VQ35DE/HR - Nissan 350Z Z33 370z / Infiniti G35 G37
The SPDZ1 Performance Long Tube headers for VQ35DE/HR are designed to replace your factory header. These long tube headers are constructed with 304 brushed 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.
Each header features 2 o2 bungs placed downstream of the collector so that you can utilize your factory upstream and downstream o2 sensors.
You will be required to extend your primary o2 sensor harness to meet the new location which is lower on the header.
What’s in the Box:
2x Stainless Steel Long Tube Headers
2x 2 bolt exhaust gaskets
2x Head to manifold gaskets
Fitment:
Nissan 350Z & Nissan 370Z
Infiniti G35 & G37
VQ35DE & VQ35HR Engines
Fits G37X (AWD) models
Specification:
2.5" outer diameter exhaust collector
1.8" outer diameter on the primary tubing
Direct bolt-on installation to OEM mid Y pipe
Flange is 3/8" thick
Includes gaskets & hardware
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
Vehicle Fitment:
2011-2012 Infiniti G25 Sedan Engine: VQ25HR
2003-2008 Infiniti G35 Coupe Engine: VQ35DE
2008-2013 Infiniti G37 Coupe Engine: VQ37HR
2003-2013 Infiniti G37 Sedan Engine: VQ37HR
2009-2012 Infiniti FX35 Crossover Engine: VQ35HR
2010 Infiniti M35 Sedan Engine: VQ35HR
2011-2012 Infiniti M35H Sedan Engine: VQ35HR
2014-2019 Infiniti Q50 Sedan Engine: VQ35HR Hybrid
2014-2015 Infiniti Q60 Coupe Engine: VQ37HR
2014-2015 Infiniti Q60 Convertible Engine: VQ37HR
2003-2009 Nissan 350Z Convertible Engine: VQ35DE
2003-2008 Nissan 350Z Coupe Engine: VQ35DE
2009-2020 Nissan 370Z Convertible Engine: VQ37HR
2009-2020 Nissan 370Z Coupe Engine: VQ37HR
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