USC 426003 Direct-Fit Catalytic Converter – Infiniti G35/G37/EX35/FX35/Q50/Q70 / Nissan 350Z/370Z 3.5L-3.7L V6

FULL LOAD CONVERTER

USC Part #426003 | Direct-Fit Catalytic Converter | Infiniti G35 / G37 / EX35 / FX35 / M35 / M37 / EX37 / FX37 / Q50 / Q60 / Q70 / QX50 / QX70 / Nissan 350Z / 370Z 3.5L–3.7L V6

Upgrade your Infiniti or Nissan's exhaust system with confidence. The USC 426003 is a precision-engineered, direct-fit Catalytic converter built to OEM standards — delivering clean emissions, leak-free performance, and long-lasting durability right out of the box.

Features & Benefits

• OEM Grade Technology: Engineered to meet or exceed OEM construction standards using OE-sized substrates, high-density precious metals, advanced robotic wash coating, and precisely infused alloys for peak catalyst performance and extended product life.
• Engineered for Tough Applications: Proprietary, application-specific matrix-based ExtrmTech catalyst technology delivers outstanding performance even under the most demanding conditions. Integrates TSB updates and the latest regulatory emissions standards — First Time Right.
• Precision Perfected: Advanced robotic welding technology ensures a leak-free, exact fit every time.
• Built to Last: High-strength stainless steel construction, precision laser welding, and advanced catalyst formulations. Every unit undergoes 100% end-of-line inspection and rigorous leak testing.
• Warranty: Backed by a 5-year / 50,000-mile OEM-equivalent warranty for added peace of mind.

Product Specifications

Vehicle Fitment

• 2007–2008 Infiniti G35
• 2007–2008 Nissan 350Z
• 2008–2012 Infiniti EX35 3.5L V6 AWD
• 2008–2013 Infiniti G37
• 2009–2010 Infiniti M35
• 2009–2012 Infiniti FX35
• 2009–2020 Nissan 370Z
• 2011–2013 Infiniti M37
• 2013 Infiniti EX37 & FX37
• 2014–2015 Infiniti Q50 & Q60
• 2014–2017 Infiniti QX50 & QX70
• 2014–2019 Infiniti Q70
• 2015 Infiniti Q40
• 2015–2019 Infiniti Q70L [Left]

Interchange / Cross-Reference