2003-2009 Nissan 350Z Cat Back Exhaust丨4.5 Inches Dual Burnt Tips丨3.5L V6 Coupe/Convertible 2Door Only

2003-2009 Nissan 350Z 3.5L V6 Cat Back Exhaust System

A cat-back system is one of the most common first exhaust upgrades for a 350Z, because it replaces the section behind the catalytic converters in one bolt-on job. This Flashark system is built for the listed 2003-2009 Nissan 350Z 3.5L V6 coupe and convertible applications, and combines mandrel-bent 2.36-inch piping, two mufflers, two resonators, and 4.5-inch dual burnt tips in one package.

The base option on this page is the cat-back system on its own. Two additional variants bundle it with a header or with a header and downpipe for listed 03-06 Nissan 350Z applications, so review the variant table under What's Included before you order.

Specifications

The specifications below apply to the Catback Exhaust option (SKU FLES08131). Check them against your current setup, especially if your 350Z already has aftermarket exhaust parts installed.

Key Features

• Cat-Back System Layout: Replaces the exhaust section behind the factory catalytic converters, covering more of the exhaust path than an axle-back section, so you know exactly where this system starts and stops before you order.
• Dual Mufflers With Two Resonators: Both rear mufflers and both resonators ship with the system, which is designed to keep the rear section more controlled than a resonator-free or straight-piped setup while you decide how far to take your build.
• 2.36-Inch Mandrel-Bent Piping: The mandrel-bending process keeps the pipe diameter consistent through the bends instead of pinching it, which supports smoother flow through the rear section than crush-bent piping.
• 4.5-Inch Double-Walled Burnt Tips: Two 4.5-inch rolled tips with a burnt finish fill out the factory rear bumper openings and are the most visible part of the install, so the rear end reads as a finished dual-exit setup.
• 201 Stainless Steel Construction: The piping, mufflers, and tips are built in stainless steel, giving the system the corrosion resistance expected from stainless exhaust construction under normal street use.
• Bolt-On Installation: The system installs without cutting or welding on listed stock-fit applications, and the gaskets, bolts, and nuts you need for the cat-back section are included in the box.
• Three Ordering Options: The base variant is the cat-back alone for 2003-2009, while the two bundle variants add a header or a header plus downpipe for listed 03-06 applications, so you can match the package to your build stage instead of buying parts twice.

System Design And Installation Video

This is a cat-back exhaust system, not an axle-back muffler section. It replaces the piping and components from behind the catalytic converters to the rear of the car, including both mufflers, both resonators, and the tips. The factory catalytic converters and oxygen sensors stay in place with this cat-back-only option.

Sound character depends on the complete exhaust path. Because the system keeps two mufflers and two resonators, it is built to stay more controlled than a straight-piped rear section, but the final tone depends on your headers, catalytic converters or test pipes, resonator choices, and engine condition.

4.5-Inch Dual Burnt Tips

The 4.5-inch dual burnt tips give the rear of the 350Z a fuller, more finished look without changing the bumper. For many owners this is the first thing they notice after the install, because the dual-exit layout fills the rear openings more completely than the factory setup.

See how Jake Cande installs dual exhaust! (350Z)

Single Tip Vs Dual Tip 350Z Catback Exhaust

For a 350Z, the choice between a single-tip and dual-tip catback is not only about sound. It changes the rear-end look, the visual balance of the build, and how the car reads from behind. A dual-tip setup like this one keeps the back of the car fuller and closer to a factory-style dual-exit appearance.

If the car still has the factory rear bumper and you want the back end to look filled out, the dual-tip setup usually makes more sense. If you are building a more stripped-down drift-style or track-inspired 350Z, a single-tip catback may fit that look better.

For a more minimal setup, you can also check the Flashark Single Tip Catback Exhaust for compatible 350Z and G35 applications. Choose the dual-tip exhaust on this page if you want the fuller rear-end look, dual muffler layout, and dual-exit appearance.

What's Included

What arrives in the box depends on the variant you select:

The cat-back-only option does not include headers, a downpipe, or test pipes. If you need those parts, use the matching bundle variant or contact customer support before ordering.

Check Before Ordering

• Confirm your year and body style: the cat-back option is listed for 2003-2009 Nissan 350Z 3.5L V6 coupe and convertible applications, while the bundle variants are listed for 03-06 applications.
• Confirm the variant you select: the three options differ in what ships in the box, and the front-section parts in the bundles follow the 03-06 year range.
• Check your current exhaust: if the car has previous exhaust work, aftermarket parts, or rusted factory hardware, confirm compatibility with customer support before purchase.
• This is not a G35 listing: 350Z and G35 fitment is not interchangeable. If you own an Infiniti G35, use a G35-specific listing or contact support first.
• Emissions and local rules: a cat-back system does not replace the catalytic converters, but sound limits and inspection rules vary by state and county, so check your local regulations before installing.

Shipping & Returns