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Nissan 350Z: Exhaust and Air Intake Mods Andrew Totolos makes a few enhancements that help a new-generation Z-car breathe easier — and go faster. From "Tricked Out" episode DTRK-407

In this Tricked Out project, host Andrew Totolos does a little respiratory therapy on a 2004 Nissan 350Z, opening up its pipes for a little more breathing room and a little more horsepower.

The 350 is the newest incarnation of the famous Z-car, the classic ricer whose origins date back to 1969 — back when a Nissan was called a Datsun. This new version of the Z is a pretty impressive automobile even in its stock state. In fact, when it comes to modding a modern Z, many owners would be hesitant since the bolt-on parts that might unlock hidden power in older sport compacts could actually produce questionable results in this car. The fact is that the 350 is designed so well that conceivably you could spend a small fortune on bolt-on parts that wouldn't actually enhance performance. Worse, they might even produce results below those inherent in the factory set up.

With that caveat in mind, we've come up with a few fairly simple but well-chosen mods that will realize a real performance upgrade for this already high-performing car, and without compromising a good thing. Those include: cold air intake, an intake plenum spacer and a high-flow cat-back exhaust system.

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	Cold-air intake components
	A modified strut tower bar facilitates the placement of the plenum spacer.
	Andrew installs the high-flow exhaust.
	The high-flow exhaust, installed

Materials and tools for all modifications in this project:

In addition to standard auto-mechanic's tools (wrenches, ratchets, extenders, screwdrivers, nut-drivers, torque wrench, etc.), the essential tools required for this project are listed below.

cold air intake
intake plenum spacer
modified strut tower bar
high-flow dual exhaust
sealant
putty knife
rag
aftermarket strut tower bar
penetrating fluid
exhaust hanger removal tool
jack stands
rubbing alcohol and rags
Portable DYNO (or take the car to a DYNO testing station)

Important: Included in this summary are the steps in this automotive procedure as shown in the episode. These steps are general guidelines that are applicable to most vehicles. With any particular car or truck, there may be procedures, specifications, settings, tolerances, components, etc. that are specific to that vehicle. There are also variations according to the type and brand of upgrade-kit or replacement part that you select. Always consult your vehicle's service manual when undertaking significant automotive repairs, and read and follow the manufacturer's directions and precautions that come with your kit or replacement parts.

Safety Alert: As a standard safety precaution, always disconnect the vehicle's negative battery cable before you begin work on any electrical or mechanical components.

Safety Alert: Always wear eye protection and follow proper safety precautions when working with power tools or pneumatic tools. Also wear eye protection any time you are working underneath a vehicle.

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