2007-2009 Nissan 350Z Stillen Generation 3 Ultra Long Tube Dual Intake Kit

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STILLEN High Flow Cold Air Intake Kits for Nissan and Infiniti
STILLEN offers our exclusive Generation 3 Ultra Long Tube Intake for the dual throttle body VQ engines.

At STILLEN, good is never good enough. Our continuing dedication to extracting maximum performance from the VQ37 powerplant led to the introduction of our new Generation 3 Ultra Long Tube Cold Air Intake Kit for VQ37 equipped vehicles.

Our R&D team engineered and dyno tested more than 50 variations before identifying this design as the best solution available for the VQ37 engine.

The Gen 3 intake has a radically updated design that provides dramatically better power than any intake on the market for the VQ37 equipped vehicles. It features an integrated system of variable diameter tubing and steps to maximize air velocity, including additional polished tubes that pass through the front core support.


The new Ultra Long Tube Cold Air Intake places two large air filters in front of the radiator. This strategic placement of the filters allow for optimum cold air flow and easy filter access and removal for cleaning. On some applications such as the G37, urethane splash guards are included in the kit to help protect the filters.


The power result: A dyno-proven:

20 horsepower gain at the wheels on the dual throttle body 350Z

18.5 horsepower gain at the wheels on the G37 coupe

17.5 horsepower gain at the wheels on the 370Z

14 horsepower gain at the wheels on the G35/G37 sedan 

No other intake for the VQ can match these power gains!


Your needs are simple…you want to go faster, quicker and farther.

You want performance parts that are:

- Dyno- proven to deliver on their promise.
- Easy to install.
- Hassle free at smog check time. 

Is that really too much to ask for? Thanks to the performance experts at STILLEN, not only is it is possible, it’s downright easy!

Just install a STILLEN high flow cold air intake kit on your G or Z. STILLEN high flow cold air intakes boost power and performance while increasing fuel efficiency! Plus, you get the added benefit of that signature STILLEN sound and style. It might just be the best dollar-per-horsepower investment you make!

When you install a STILLEN air intake, you can be confident you're using the best air intake kit on the market - one you can be sure delivers the performance gains you're seeking.


All STILLEN air intakes are designed, tested and manufactured right here at our Orange County California facilities. Our engineers develop and optimize each intake to generate peak horsepower and torque increases across the RPM range. Once a design is finalized, our expert craftsmen manufacture and assemble each air intake kit with pride and precision.


If an aftermarket high flow air intake kit can make a vehicle more powerful and efficient, why don’t car manufacturers design, build and install them as original equipment? It’s all about compromise and cost control. Once car designers and engineers are done creating their dream version of a new vehicle, the bean counters step in. Their job - maximize production efficiency and minimize parts costs. Call it a reality check, because the reality is, the average car owner wants the lowest priced, lowest maintenance and quietest vehicle they can afford. 


If you’re like most automotive enthusiasts, though, good enough…isn’t.

You want to unleash the power that the accountants collared.
You want to hear your engine breathing freely, no longer choked by design and cost-cutting compromises.
You want to dress up your engine compartment with performance parts that look great and deliver real world benefits. 

Here at STILLEN, we’re experts at performing engine CPR via high performance air intake upgrades. 

The steps sound simple on paper:

Achieve a laminar airflow through the intake passages by replacing accordion style factory intake tubing with smooth walled pipes.
Increase airflow and filtration efficiency by replacing factory panel filters with high performance cone or barrel air filters with larger surface area.
Improve airflow by replacing restrictive factory intake tubing with larger diameter pipes, some featuring design manipulation to increase airflow velocity as well.
When practical, relocate air filter location outside the engine bay to access fresher, cooler intake air.
The reality is much more complicated. Each STILLEN high flow cold air intake kit can take months of design and testing to perfect. In some cases we’ve produced more than 50 prototype variants before finalizing a design! Most STILLEN air intake kits are 50 state legal, adding more layers of testing and approvals to attain CARB exempt status. 

Think of it this way: we’ve done the hard work so you don’t have to. 


Year after year, the debate rages on:

“Dry filters are easy to maintain than oiled filters.”

“Yeah, but oiled filters offer better filtration than dry filters.”

“Yeah, well, oiled filters will contaminate your MAF sensor”. 

Let STILLEN filter out the noise for you: both types of filters work very well, and far better than cheap OEM panel filters. These days filter technology has come so far and is so good that it really comes down to user/owner preference.

Oiled filters will not damage your MAF sensor. K&N Engineering was the first company to employ oiled filters in their intake designs. They have tested their oiled filters for decades and continue to test their filters and oils against the latest technology coming out from the OE’s. Every time they test their products they find that there is no damage being done to electronic components or engine internals caused by their oils. For more information on this visit the K&N website here:www.knfilters.com/maf/massair.htm

If you still feel unsure about using an oiled filter, simply select the dry filter option for your STILLEN air intake kit. As an added benefit, a dry filter is slightly easier to clean and maintain.

Each STILLEN High Flow Air Intake kit includes high quality K&N cone filter(s) or AEM dry filter(s) on select kits.

Note that the high flow design increases the volume of engine note both inside and outside the cabin. Performance-minded enthusiasts typically find the authoritative note of a high flow air intake pleasing.

Most STILLEN High Flow Intakes are CARB Exempt. Others are currently CARB Pending, and may not be 50 state legal until exempt. Clean your filter regularly for best results.

Recommended installation requires removal of the front fascia clip (not absolutely necessary for some vehicles, but significantly aids in ease of installation) and slightly enlarging the holes through the front core support. No other parts relocation or removal is required.

Steve Millen Sportparts, Inc. and STILLEN humbly started their race to the front of the pack in 1986. Starting with aftermarket mini-truck appearance packages, we quickly found ourselves fulfilling customer's requests to build products for other vehicles such as vans and full-sized trucks.

With that came performance parts, suspension pieces, and upgraded brake products such as big brake systems. Capitalizing on his racing career, and knowing what it took to make sports cars perform like no other, it was only natural for Steve Millen to branch out into the import car scene. Over two decades later, we offer a full array of products encompassing styling, performance, handling, and braking products for just about any car, truck, or SUV.

More Information
Parent Product TypePerformance Upgrades
Product TypesCold Air Intakes
Year Start2007
Year End2009

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