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Plenum / High Flow Cat COMBO 350Z/G35 03-05

: $724.99
Item Number: KX-DE-VP-HFC
Save BIG when you buy our new V+  plenum and SMOG legal high flow cats together as a package for your 03-06 350z or G35.  Together, these two products give you very solid gains over the entire RPM range.


NEWLY RELEASED V+ intake plenum with new LOWER PRICE !!

Fits the following models:

2003-2005 350z and 2003-2007 G35 (single throttle body engine models)

2003-2008 FX35

Improved in EVERY aspect over our previous intake plenum, including performance:

     * 270% stronger than previous plenum

     * Incredible heat resistance, improved 170%, now up to 500 degrees F

     * Lower operating temperatures - 50 degrees cooler than ANY aluminum plenum option

     * More volume! 20% more volume than factory and 12% more than our previous version

     * Completely smooth underside with NO flow restrictions

     * Can handle boosted cars, with lifetime warranty on cars up to 10 psi

     * Lifetime Warranty

     *  Check out our upcoming "Upgrade Program" for our previous plenum customers!

This new intake plenum replaces the upper half of your factory intake manifold.  This plenum bolts directly up to your car with zero modifications, and also allows the use of the factory strut bar, and engine cover.  This unit will fit the 350z, the G35, and the FX.  *** engine cover may not fit with the G35 or the FX35 **

This plenum increases the volume to the middle and more importantly the front cylinders.  The factory plenum utilizes a very aggressive angle as it caps off the front cylinders.  This new plenum equalizes the flow to all cylinders, while also increasing the total plenum volume.  This plenum also uses a very versatile plastic to achieve a smooth interior for superior flow properties.  The plastic also allows a lighter overall weight, by about 3 lbs.   The overall temperatures of the plenum have also decreased by about 50 degrees Fahrenheit.  This helps with heat soak problems and to help lower air intake temperatures.

Our plenum has shown a solid peak gain of 14 rwhp and a consistent gain throughout the RPM range.   When matched up with our high flow cats, they together have shown  peak gains of 20 rwhp

The plenum still retains all factory mounting points and also includes all necessary new hardware.  The plenum also includes a permanently adhered flange gasket that is to be used with the factory gasket as well as a new throttle body gasket.

Look for our package with our SMOG legal high flow cats for package savings.

** This plenum includes a lifetime warranty on manufacturer's defects.  This will include any failure in the material used which may effect its ability to create a seal.   We will also offer a new gasket service for a minor fee to replace any gaskets that have been damaged during installation or repetitive installations.

The factory catalytic converters are well known as the biggest "choke point" in the factory exhaust system. Our High-flow catalytic converters blow away the stock converter flow rates while still maintaining legal US emissions levels.

Constructed with stainless tubing and 3/8" stainless flanges (converters are aluminized steel). Fully TIG welded and true mandrel bends used throughout. These converters will bolt up to any header (factory or aftermarket) and any exhaust (factory or aftermarket). These pipes also retain the factory Oxygen sensor location and WILL NOT THROW A CHECK ENGINE LIGHT!!.

Expect great performance gains from these converters as they have dyno'd between 4-10 hp at the wheels on factory 350Z's. They only add a slightly more aggressive exhaust note and do not have the pesky "raspiness" between 3-4k rpm that is seen with straight through test pipes.

All of our pipes come complete with bolts, washers, and lock nuts.

** Please check local laws regarding performance upgrades. Our products are 49 state legal and do not have a CARB number associated with them. **

This package ships on average 6-10 business days after order placement.