Z1 '03-'07 G35 Cold Air Intake System - Z1 Motorsports - Performance OEM and Aftermarket Engineered Parts Global Leader In 300ZX 350Z 370Z G35 G37 Q50 Q60
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Z1 '03-'07 G35 Cold Air Intake System

starstarstarstarstar_half 4.9/5 - (16 Reviews)
Fits models: G35...

Product Description

Introducing the Z1 G35 Cold Air Intake, the ultimate bolt-on upgrade for your 2003-2007 G35 Coupe or 2004-2006 G35 Sedan. This high-performance intake system is a bolt-on upgrade engineered to increase horsepower and torque while providing more consistent intake air temperatures than any other intake system on the market! Easy to install with minimal modifications, the Z1 G35 Cold Air Intake System is the perfect addition to any G35 performance build. Experience improved throttle response, faster acceleration, and an overall boost in performance.

THE DESIGN

The design for Z1's G35 Cold Air Intake begins by eliminating the multi-piece factory airbox, mass air flow sensor (MAF) housing, and corrugated intake tube. In place of the factory intake, you will find a single-piece roto-molded air box made from cross-linked polyethylene, engineered to fit our custom-designed dry-media air filter. The stock corrugated tube and MAF housing have been replaced with a roto-molded intake tube, allowing air to reach the throttle body with minimum turbulence and interruption. The intake tube is seamlessly attached to the throttle body by a multi-layer reinforced silicone coupler, with diameter-matched steps for both the tube and the throttle body. This helps the air seamlessly transition from one body to another without inducing turbulence. The Z1 airbox draws in high-pressure cold air from behind the factory grill and features an extra air inlet near the corner of the box. This reduces intake air temperatures and allows your car to run more efficiently, making more power and torque. To improve aesthetics, the MAF has been relocated to the bottom of the inlet tube. 

Note: While the intake tube and box are compatible with the factory PCV hose, we recommend using a 350Z PCV Hose with this intake for optimal fitment. Due to the numerous color options, this PCV hose is not included.

THE FILTER

Our custom-designed air filter features an integrated velocity stack. This is used to maximize airflow by allowing air to enter the intake piping through an unobstructed rounded taper (similar to a trumpet horn.) This results in less intake turbulence, increased volume, and increased air velocity, allowing your intake system to work at its maximum potential. The large dry media Z1 Air Filter was chosen for 2 reasons; unlike conventional oil bath cotton filters there is less of a chance of contaminating the vehicle's Mass Air Flow Sensor, and the filters do not clog as easily in dusty environments.

THE GAINS

The graph below illustrates the average performance gains that can be expected when installing the Z1 Cold Air Intake. The car used in the dyno test below was a 2004 G35 Sedan with manual transmission and prototype Z1 Exhaust. The graph in blue shows a gain of 11whp and 13wtq after installing the Z1 Cold Air Intake, while the graph in green shows additional gains of approximately 5whp when combined with a Z1 Plenum Spacer.

Features:

  • Easy-to-install
  • Gains +11whp and +13wtq
  • Roto-molded air box and intake tubing
  • Serviceable dry-media air filter
  • Discreet MAF placement
  • True cold-air design maintains lower IAT
  • Retains OE air inlet placement behind the grill

Fits:

  • 2004-2006 Infiniti G35 Sedan
  • 2003-2007 Infiniti G35 Coupe

*** This item does not qualify for any additional discounts or promotions ***

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List Price: $389.99
Special Price: $329.99
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Install manuals for this item

description Install_Z1_G35_Intake.pdf

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What our customers say

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Alexander
April 17, 2024
Gave me better response over stock. I had to modify mine slightly for the round maf. Working great
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James
February 8, 2024
Got this on black Friday deal fast shipping very simple install took longer to find tools and Uninstall oem unit than install this z1 kit very straight forward definitely felt a power increase would recommend for a cleaner style and get the silicone pvc hose
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John
December 14, 2023
Love it .form fit and functional
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Jeff
December 12, 2023
I got this with the Motordyne plenum spacer installed and while I can't really discern any noticeable different in power, I will say that it looks significantly better than the stock setup. For the price, it's a great product.
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Miguel
December 8, 2023
Great intake!! Noticed my engine runs way colder with this intake paired nicely with the Z1 plenum spacer. I can even touch the top of my plenum after a hard drive!! The intake looks great, performs great, and overall definitely is one of if not the best Cold air intake system for the Vq35DE.
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Shannon
September 19, 2023
This was the best add I have done on my car yet. Please do yourself a favor and buy it!!!! Also pair it with a 75mm throttle body and let her rip chip! Lol Go get this!!!!
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Darrin
September 12, 2023
Installing was a breeze and straight forward. Definitely noticed some gains in the low and mid range. really added some straight sexy to the engine bay .I'm happy with my purchase.
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Nate
August 5, 2023
Intake cuppler direction was not clear in the instructions. A dot or notch in the silicone would clear things up. Great fitment after massaging into place. Noticeable power increase over my dc hot air intake.
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James
June 8, 2023
Excellent upgrade I noticed an immediate increase in horsepower I would definitely recommend this to all g35 owners 👍👍👍
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John
May 17, 2023
Perfect fit Great looks and sound Definitely notice a big difference over the stock intake
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Scott
April 5, 2023
I had an R2C intake I was happy with but the new Z-1 intake looked like the filter was better sealed from hot air from the engine bay and a free flowing connection with the OEM style scoop over the radiator. Fit and finish is first rate, would highly suggest getting the PCV tube recommended. Although I was unable to get my old one loose from the valve cover. So I had to cut my old one down to fit properly. I'll get the new one installed once I figure out how to better access the clamp on the valve cover. Anyway, installation went smoothly other than that. Be careful when turning the tube over after installing the MAF sensor so you don't turn it the wrong way and put stress on the wiring. I have Art Pipes and even with a reasonably quiet exhaust, I didn't hear my previous intake and don't hear this one either so I can't comment on the sound. The throttle does seem a bit more responsive vs the R2C intake. Maybe because it's the same diameter throughout? Looks great under the hood too.
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Matthew
March 16, 2023
Perfect fit, shipping was quick
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Jesus
March 8, 2023
Fits great and looks great under the hood instructions were straight forward only part that gave me a little struggle was the upper tube to reach the stock hose but made it work
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Carlos
March 1, 2023
Easy install, can definitely feel a difference coming from stock intake system . Great purchase!!
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Sang
February 20, 2023
I bought this because the OEM intake in my 2005 G35x cracked. It was very easy to install and looks great in the engine bay.
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Robert
February 17, 2023
extremely satisfied with this purchase. installed this on my 2007 g35 6mt, everything fit properly and it definitely woke it up. it sounds way better than the oem intake I originally had. I highly recommend it👍