2009–2020 Nissan 370Z 3.7L V6 (Z34) Single-Tip Cat-Back Exhaust
This single-exit cat-back exhaust is built for the 2009–2020 Nissan 370Z with the 3.7L VQ37VHR V6 in 2-door Coupe and Convertible (Z34) body styles. It replaces the exhaust section behind the factory catalytic converters with 3-inch stainless steel piping, a muffler, and a single outlet. Two stainless grades are available for the main pipes — 304 stainless steel or budget-friendly 201 stainless steel — so you can match the system to your budget without changing the rest of the design.
As a cat-back system, it is designed to keep the factory catalytic converters and O2 sensors in place. If your 370Z already runs aftermarket headers, test pipes, or a modified Y-pipe, confirm the inlet connection with our support team before ordering.
Specifications
The specifications below apply to both material options. The Material option selects the grade of the 3-inch main (bend) pipes: 304 stainless steel (SKU FLEXS22-00084SR-001-L) or 201 stainless steel (SKU FLEXS22-00084SR-000-L).
| Component | Material | Thickness (mm) | Notes |
|---|---|---|---|
| Bend pipes | 304 stainless steel (SS304 option) or 201 stainless steel (SS201 option) | 1.23–1.25 | Set by the Material option |
| Muffler inner perforated tube | 409 stainless steel | 0.95–0.97 | Inside the muffler body |
| Perforated tube end cap | 304 stainless steel | 0.87 | Caps the inner tube |
| Flanges | Stainless steel | — | Laser-cut for precise fit |
Key Features
- Single-Exit Cat-Back Layout: This is a full cat-back system rather than an axle-back, and it ends in one outlet instead of two. It covers the stainless main pipes, the muffler, and the single tip behind the factory catalytic converters, so the converters and factory O2 sensors stay in place.
- Two Stainless Steel Pipe Grades: The Material option sets the grade of the 3-inch main pipes. SS304 (SKU FLEXS22-00084SR-001-L) offers higher corrosion resistance, while SS201 (SKU FLEXS22-00084SR-000-L) is the budget-conscious choice; the rest of the system layout is shared by both options.
- Removable Muffler Insert: The muffler includes a removable dual-layer insert. Keep it installed for the tamer setting or remove it for a louder, more open tone, and switch back at any time without replacing the exhaust.
- TIG-Welded Sections with Laser-Cut Flanges: The stainless piping is joined with TIG welds, and the system uses laser-cut flanges at its connection points, as described in the specifications above.
- Multi-Grade Stainless Build: Both material options share the same muffler construction — a 409 stainless steel inner perforated tube and a 304 stainless steel end cap — with the 304/201 choice limited to the main pipes.
Common Pairing Parts
These parts are sold separately and are listed on this page as recommended pairing upgrades for the 370Z. Confirm each part’s fitment with your vehicle before ordering.
- Performance Exhaust Headers — replaces the factory exhaust manifolds (sold separately).
- High-Flow Test Pipes — replaces the factory catalytic converters (sold separately; removing the converters can affect emissions compliance in your area).
- Y-Pipe / Downpipe Exhaust — for builds that modify the section ahead of this cat-back (sold separately).
Check Before Ordering
- This is a single-outlet cat-back exhaust for the 2009–2020 Nissan 370Z 3.7L V6 (VQ37VHR), 2-door Coupe or Convertible (Z34). Confirm your model year, engine, and body style before ordering.
- The Material option sets your bend-pipe grade and SKU (SS304 = FLEXS22-00084SR-001-L; SS201 = FLEXS22-00084SR-000-L). Verify the option you select at checkout.
- The factory catalytic converters and O2 sensors are retained with this cat-back; this system is not a test-pipe or catalytic-converter-delete setup.
- If your 370Z already has aftermarket headers, test pipes, or a modified Y-pipe, the inlet connection can differ from a factory setup — contact our support team to confirm compatibility before ordering.
- Individual hardware (gaskets, clamps, bolts) is not itemized on this listing. If you need hardware with the kit, confirm what is included before ordering.
Shipping & Returns
Free U.S. Shipping: Orders are typically processed within 1–2 business days and delivered within 7–9 business days. Additional charges may apply to remote areas.
30-Day Returns: Unopened and unused items in their original packaging may be returned within 30 days of receipt. Return shipping is covered for verified quality issues.
Worry-Free Delivery: Optional protection against eligible loss, theft, delay, or transit damage is available at checkout.
Fitment & Compatibility
- Fits factory-equipped vehicles with listed configurations.
- ✅Please confirm vehicle specifications before ordering.
| YEAR | MAKE | MODEL | ENGINE | BODY |
|---|---|---|---|---|
| 2009-2020 | Nissan | 370Z | 3.7L V6 | 2 Door - Coupe / Convertible |
2009–2020 Nissan 370Z (Z34) Cat-Back Exhaust FAQs
Q1: Which Nissan 370Z models does this cat-back exhaust fit?
A1: It fits the 2009–2020 Nissan 370Z with the 3.7L V6 engine (VQ37VHR) in 2-door Coupe and Convertible (Roadster) body styles of the Z34 generation. The listing covers the 2-door body only. Confirm your model year, engine, and body style before ordering.
Q2: Is this a cat-back or an axle-back exhaust?
A2: This is a cat-back system, not an axle-back. It replaces the exhaust section behind the factory catalytic converters — the stainless main pipes, the muffler, and the single outlet — rather than only the rear muffler section.
Q3: Does installing this exhaust remove my catalytic converters?
A3: No. A cat-back system is designed to install behind the factory catalytic converters, so the converters remain in place. Parts that replace or delete the converters, such as test pipes or a downpipe setup, are separate products and are not included.
Q4: Why does this system have a single tip instead of two outlets?
A4: It is a single-exit cat-back: the exhaust path ends in one outlet rather than splitting to two. If you prefer a dual-outlet rear layout, that is a different system configuration.
Q5: What is the difference between the SS304 and SS201 material options?
A5: The option sets the stainless grade used for the 3-inch main pipes. SS304 (SKU FLEXS22-00084SR-001-L) is a higher-corrosion-resistance grade, while SS201 (SKU FLEXS22-00084SR-000-L) is the more budget-conscious grade. The muffler’s inner tube is 409 stainless steel in both options.
Q6: What does the removable muffler insert do?
A6: The muffler has a removable dual-layer insert that changes the exhaust note. With the insert installed, the system runs in its tamer configuration; removing the insert gives a louder, more open tone. You can switch between the two settings without replacing the exhaust.
Q7: What is included with this exhaust system?
A7: The listing describes the stainless main pipes, the muffler assembly, and the single outlet as part of this cat-back system. Individual hardware items such as gaskets, clamps, and bolts are not itemized on this page, so confirm what ships with the kit before ordering if you need hardware.
Q8: Can I pair this cat-back with headers, test pipes, or a Y-pipe?
A8: Yes. The page lists performance headers, high-flow test pipes, and a Y-pipe/downpipe as recommended pairing parts, and they are sold separately. Keep in mind that replacing the factory catalytic converters with test pipes or a catless setup can affect emissions compliance in your area and may change engine-management behavior — check local regulations before ordering.
Q9: Will this exhaust cause a check engine light (CEL)?
A9: It is not expected to. The system installs behind the factory catalytic converters and does not relocate the factory O2 sensors, which remain in their original positions. If you also remove or replace the converters, emissions-related behavior can change and is outside the scope of this cat-back system.
Q10: What power or fuel-economy gains does this exhaust provide?
A10: No specific power or fuel-economy figures are published for this system. Results vary with the vehicle, its condition, tuning, and supporting modifications, so we do not list fixed gain numbers for this single-tip cat-back.
Q11: Is professional installation required?
A11: Installation guidance is not included in this listing. The system is built from flanged, TIG-welded stainless sections intended to connect behind the factory catalytic converters. If you are not experienced with exhaust work, we recommend professional installation, and we suggest confirming how the inlet lines up with your vehicle’s existing exhaust before ordering.