My name is Aaron Kimball and I am the owner of NWP Engineering, Inc. I have been given special permission by the administrator to post this thread to see if there is interest in having another vendor produce and test intake spacers for the Frontier.
We specialize in designing and producing Thermal Intake Spacers for many Nissans, including the Maxima and Altima. All our spacers are flawlessly port matched to the stock intake ports. They also follow the exact same exterior contours of the intake manifold, resulting in a VERY clean install. The other big aspect of our spacers is that they prevent heat from transferring from the heads to the intake manifold. Our kit for the VQ35DE lower intake manifold temperatures by an average of 40 degrees with average HP gains of 10hp and 12 ft-lbs of torque.
But, since the VQ40 has a plastic composite intake manifold, our phenolic laminate material would not be necessary since heat isn't much of an issue. But, I am interested in developing an intake spacer kit for the Frontier. We thoroughly test our products before releasing them, including conducting very accurate dyno testing. We will do at least 3 dyno runs before and then 3 dyno runs after to determine average gains, not just peak gains. And for the VQ40, we will develop several prototypes of various thicknesses to see which provides the highest power gain.
As far as pricing, I should easily be able to stay under $230 for the entire kit, depending how the design process goes. The kit will include one aluminum upper intake manifold spacer, lengthened bolts, other hardware and fasteners that may be needed, installation instructions, and of course, NWP Engineering decals. The actual thickness that we decide on using for this spacer will depend heavily on how our dyno testing goes. It could be only 1/4" thick or it could be as much as 3/4" thick. We also may be able to offer two Thermal Intake Spacers that go between the heads and the lower intake manifold to prevent heat from transferring. Every little bit helps.
Here are a couple pictures to show the quality and precision of our products.
This is the Variable Intake Block Plate for the FWD VQ35DE. It is CNC machined from a solid piece of 6061 aluminum. Note the quality of the raised NWP logo.
This is the Thermal Intake Spacer Kit for the FWD VQ35DE Maxima, Altima, I35, Murano, and Quest. The spacers are made of a high quality phenolic laminate.
This is the VQ35DE Thermal Upper Intake Manifold Spacer on the stock lower intake manifold to show how well everything is matched.
I already have a 2006 Frontier KC 6spd VQ40DE test vehicle lined up in order to get this project off the ground. Please post to express your thoughts on having a new intake spacer kit developed for your truck. If there is interest, I will become an official vendor of this forum and will start with this project immediately.
We strive to offer the highest quality products possible and the best customer service you have ever experienced. You will not be disappointed.
Thank you for your time,
Aaron Kimball
NWP Engineering, Inc.
NWP Engineering, Inc - Custom Design and Fabrication - Automotive Performance Specialist