Headers

From Nissan 350Z & 370Z Wiki

Welcome to the exhaust header page. Exhaust headers are often an overlooked upgrade for the Nissan 350Z. Many owners are quick to purchase a cat-back exhaust system, but few actually enjoy the benefits of a full engine-back exhaust package. Header design theory is very complex, but in the most basic form you should look for equal length tubing with a clean collector. There is significant power gains to be price by upgrading the 350Z exhaust manifolds to a more robust aftermarket header solution.

The major downside to header upgrades is the difficulty in their installation. The VQ35 is crammed in the 350Z's engine bay and you must be really creative to access the bolts, or have the money to pay for someone else to do the dirty work.

Contents 1 OEM Exhaust Manifolds 2 Aftermarket Headers 2.1 Birkmire 2.2 Borla 2.3 Central 20 2.4 Crawford 2.5 DC Sports Ceramic Coated 2.6 DC Sports Stainless Steel 2.7 EVO-R 2.8 Fujitsubo 2.9 GTSpec 2.10 Ichiba 2.11 JIC 2.12 Megan Racing 2.13 Mines 2.14 Nismo 2.15 Power Enterprise 2.16 Pros Engineering 2.17 Stillen Ceramic Coated 2.18 Stillen Stainless Steel 2.19 Strup 2.20 Tommy Kaira 2.21 Tomei 2.22 Top Secret 2.23 Veilside 2.24 Xerd 2.25 Yashio Factory 3 Header Design Theory

OEM Exhaust Manifolds

Weight: ~7x2 = 14lbs
The V configuration of the VQ35 series engine produces dual exhaust exits (3 cylinders per side). Nissan has included standard heat shielded exhaust manifolds on the 350Z and G35.

Accessing the exhaust manifolds is not an easy task. The cramped quarters of the engine bay coupled with some awkward bolt location provide for a rather tough job when pulling or installing exhaust headers or any type on the VQ35.

For those wanting to maximize engine performance in Naturally Aspirated form, headers can be purchased and installed in place of the standard manifolds. Take note that none of the aftermarket headers provide head shielding so header wrap or custom heat shields may be beneficial.

The OEM exhaust manifolds are replaced with turbo manifolds when a twin turbo kit is installed. However, the single turbo kits utilize the OEM manifolds.

Aftermarket Headers

There is no shortage of performance headers for the Nissan 350Z. Price range from a few hundred to a few thousand for some of the more exotic variants. Typical materials are ceramic coated mild steel, stainless steel, and even titanium for those willing to pay for it. This is an ongoing collection of 350Z headers and is meant as a starting point for your research. Visit our forum to chat with other Z owners about their thoughts and experiences with headers.

Birkmire Avg Price: $? Material: stainless steel Manufacturer: Birkmire	Borla Avg Price: $589.00 Part #: 17221 Material: Stainless Steel Manufacturer: Borla	Central 20 Avg Price: $? Material: stainless steel Manufacturer: Central 20	Crawford Avg Price: $981 Material: test Manufacturer: Crawford Notes:
DC Sports Ceramic Coated Avg Price: $449 Part #: NHC4201 Material: mild steel with ceramic coating Manufacturer: DC Sports Notes: CNC mandrel bends, CNC machined flanges, Equal Length	DC Sports Stainless Steel Avg Price: $699 Part #: NHS4201B Material: Stainless Steel Manufacturer: DC Sports Notes: CNC mandrel bends, CNC machined flanges, Equal Length tubing Article:DC Sports 350z Headers	EVO-R Avg Price: $? Material: ? Manufacturer: EVO-R	Fujitsubo Avg Price: $1,095 Part #: 620-15461 Material: Stainless Steel Manufacturer: Fujitsubo Notes: Does Not Fit LH Drive cars (US version)
GTSpec Avg Price: $565 Part #: GTS-PER-1021 Material: ? Manufacturer: GTSpec	Ichiba Avg Price: $370 Part #: NS-12012 Material: ? Manufacturer: Ichiba	JIC Avg Price: $999 Part #: Z33EM-SS Material: ? Manufacturer: JIC	Megan Racing Avg Price: $180 Part #: MR-SSH-N3Z Material: Stainless Steel Manufacturer: Megan Racing Notes: 2.25" collector, use nuts without flanges unless you like grinding things, there's interference.
Mines Avg Price: $? Material: ? Manufacturer: Mines	Nismo Avg Price: $1,289 Part #: 14002-RNZ35 Material: Stainless Steel Manufacturer: Nismo Notes: Equal Length Tubing. 1.625" piping. 2.25" collector	Power Enterprise Avg Price: $? Material: Titanium Manufacturer: Power Enterprise	Pros Engineering Image:Pros engineering headers.jpg Avg Price: $? Material: ? Manufacturer: Pros Engineering
Stillen Ceramic Coated Avg Price: $599 Material: mild steel, ceramic coated Manufacturer: Stillen Notes: Equal Length tubing	Stillen Stainless Steel Avg Price: $675 Material: Stainless Steel Manufacturer: Stillen Notes: Equal Length tubing	Strup Avg Price: $489 Part #: STPN31101-L Material: Stainless Steel Manufacturer: Strup Notes: mandrel bends	Tommy Kaira Avg Price: $? Material: ? Manufacturer: Tommy Kaira
Tomei Avg Price: $940 Material: ? Manufacturer: Tomei	Top Secret Image:Top Secret Headers.jpg Avg Price: $? Material: ? Manufacturer: Top Secret	Veilside Avg Price: $2,179 Material: ? Manufacturer: Veilside	Xerd Avg Price: $? Material: stainless steel Manufacturer: Xerd Notes: Long tube, replace cats (pic shows Xerd test pipes)
Yashio Factory Avg Price: $2,845 Material: multi-piece stainless steel Notes: Sexy! But $$$$! Look at those welds!

Header Design Theory

need info!