The Z1 Motorsports VQ37VHR 400HP Package includes tested and proven components necessary to maximize the output of your naturally aspirated 370Z or G37.
After years of development and extensive dyno testing, we have released a package that includes all of the important components needed to produce the highest peak horsepower on your 370Z or G37. This package includes your choice of Z1 exhaust, intakes, ported intake manifold, headers, and optional tune. Included with this package is an intake manifold modification that complements our mid-length exhaust header design. Z1 headers produce more peak power (while maintaining power under the curve) than any other products on the market we've tested, including more expensive long tube headers.
What is the math?
Nissan advertises 332 horsepower (350 for the Nismo) as the output of the VQ37VHR engine found in the 370Z & G37. Auto manufacturers rate these horsepower figures at the flywheel. From our testing, new stock 370Zs produce around 280 rear wheel horsepower on a DynoJet, which is consistent with Nissan's claims when assuming 15% drivetrain loss. Given this drivetrain loss, 340 rear wheel horsepower equates to the engine producing 400 horsepower.
The Z1 VQ37VHR 400HP Package is capable of producing 340+ rear wheel horsepower on a DynoJet on 93 octane fuel when properly tuned. To simplify engine tuning, we have made the Z1 EcuTek Performance Tune an optional addition to the package. This tune is based on real-world dyno data that we have acquired from tuning VQ37's over the past 10+ years and is the most complete tuning package available short of performing an in-house dyno tune.
This package includes the following components:
Fits:
- 2009-2020 Nissan 370Z
- 2008-2013 Infiniti G37 Coupe
- 2014-2015 Infiniti Q60 Coupe
Important Notes:
A $300 refundable core charge applies to the intake manifold. If the core manifold is received broken or damaged no refund will be given. Pack carefully. View our core return form and policy
These have been found to not fit RHD models without modification to clear the steering knuckle. We will not guarantee fitment with RHD.
Note: When installing on 370Z / G37 models, the drivers side motor mount bracket will need to be clearanced. This is a minor modification that can be completed in a short time with the proper tools.
Headers will not fit AWD G35X or G37X models.
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