Nissan 350Z / Infiniti G35 Catalytic Converter Pair — VQ35DE 3.5L (2003–2008)
Direct-fit bolt-on catalytic converter pair for the VQ35DE — for 350Z and G35 owners dealing with failed or clogged cats. These are true catalytic converters, not catless test pipes, so your emissions system stays intact. 12 sold with buyers reporting smooth operation after install.
Bolt-on front left and right pair for the 3.5L VQ35DE — direct OEM-style replacement, no cutting or welding required. True catalytic converters (not test pipes). If your 350Z or G35 has been throwing catalyst-efficiency codes, this is the fix.
Fitment: Nissan 350Z Z33 (2003–2008), Infiniti G35 / FX35 / M35 with the 3.5L VQ35DE engine. Confirm your year, model, trim and VIN before ordering.
Safety: Catalytic converters are emissions equipment — verify your local emissions laws before replacing; some jurisdictions require CARB/EPA-certified units. Exhaust components reach extreme temperatures during use. Professional installation is strongly recommended.
Factory-direct from China: Made in China and sourced straight from the vetted factory — no middleman markup. Ships from our factory partner with tracking provided. Delivery times vary by destination.
Aftermarket part — not a genuine OEM product, and not sponsored or endorsed by the vehicle manufacturer. Fitment is verified on every order before it ships.
WARNING: This product can expose you to chemicals including engine exhaust, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Ships from our factory partner with tracking provided. Delivery times vary by destination.
Direct-fit bolt-on catalytic converter pair for the VQ35DE — for 350Z and G35 owners dealing with failed or clogged cats. These are true catalytic converters, not catless test pipes, so your emissions system stays intact. 12 sold with buyers reporting smooth operation after install.
Bolt-on front left and right pair for the 3.5L VQ35DE — direct OEM-style replacement, no cutting or welding required. True catalytic converters (not test pipes). If your 350Z or G35 has been throwing catalyst-efficiency codes, this is the fix.
Fitment: Nissan 350Z Z33 (2003–2008), Infiniti G35 / FX35 / M35 with the 3.5L VQ35DE engine. Confirm your year, model, trim and VIN before ordering.
Safety: Catalytic converters are emissions equipment — verify your local emissions laws before replacing; some jurisdictions require CARB/EPA-certified units. Exhaust components reach extreme temperatures during use. Professional installation is strongly recommended.
Factory-direct from China: Made in China and sourced straight from the vetted factory — no middleman markup. Ships from our factory partner with tracking provided. Delivery times vary by destination.
Does this fit my car?
Enter your vehicle details below. We'll confirm exact fitment with your year, trim and VIN before you order — never guess, never assume.
Confirmed compatible vehicles
- Nissan 350Z Z33 (2003–2008), Infiniti G35 / FX35 / M35 with the 3.5L VQ35DE engine
Confirm your year, model, trim and VIN before ordering.
Installation: Professional installation recommended
Material: Bolt-on front left and right pair for the 3.5L VQ35DE — direct OEM-style replacement, no cutting or welding required.
Key specifications
- Bolt-on front left and right pair for the 3.5L VQ35DE — direct OEM-style replacement, no cutting or welding required.
- True catalytic converters (not test pipes).
- If your 350Z or G35 has been throwing catalyst-efficiency codes, this is the fix.
What's included
Complete kit as shown in product photos — confirm included components with us before ordering if anything is unclear.
Warranty: 12-month manufacturing-defect warranty.
Shipping: Ships from our factory partner with tracking provided. Delivery times vary by destination. Import duties for your country may apply at delivery.
Safety
Catalytic converters are emissions equipment — verify your local emissions laws before replacing; some jurisdictions require CARB/EPA-certified units. Exhaust components reach extreme temperatures during use. Professional installation is strongly recommended.
Install Overview
Not comfortable doing it yourself? Have a professional shop handle the install. If anything doesn't fit right, stop and contact us before forcing it.
Why StealthTorque
Same factories the industry buys from. None of the middleman markup.
| Compare | StealthTorque | Typical US retailer | Marketplace sellers |
|---|---|---|---|
| Pricing | Factory-direct. No middleman markup. | Marked up through distributors and retail overhead. | No pricing standard. Varies wildly. |
| Manufacturer vetting | Every factory reviewed before a part earns a listing. | Varies by brand. | No vetting. Anyone can list. |
| Fitment verification | Free VIN check before dispatch. | Fitment charts. Rarely VIN-verified. | You're on your own. |
| Buyer reviews | Real reviews from the manufacturer's listing. | Store reviews only. | Often missing or unreliable. |
| Shipping | Tracked, factory-direct. | Domestic warehouses. | Often untracked. |
| Support | Direct help from people who know the parts. | Ticket queues. | None. |