Catalytic Converter for Nissan Murano (2003-2007) 3.5L

Direct-Fit Catalytic Converter Exhaust Pipe Kit for 2003-2007 Nissan Murano

What it Does: Restores exhaust flow velocity and emissions compliance on aging VQ35DE platforms by replacing degraded factory converter cores and fatigued exhaust piping.

The Stock Murano Catalyst Degradation and Flow Restriction

Factory ceramic cores on the first-generation Murano frequently deteriorate under prolonged thermal cycling, causing catalyst washcoat sintering, restricted exhaust backpressure, and recurring P0420/P0430 diagnostic trouble codes. Additionally, aged factory flange joints and heat-stressed pipe junctions crack over time, inducing exhaust leaks that compromise downstream oxygen sensor readings and fuel trimming.

The Engineering Solution

Engineered with a heavy-gauge stainless steel casing and computerized mandrel-bent piping to prevent localized backpressure spikes and structural fatigue. The core features a high-efficiency ceramic honeycomb monolith formulated with an advanced precious-metal washcoat to maximize oxygen storage capacity (OSC). Precision-stamped OE-spec mounting flanges and integrated O2 sensor bungs allow direct bolt-on integration with factory exhaust manifolds and hang points without cutting or welding.

Technical Specifications

Compatibility

• 2003 Nissan Murano 3.5L V6 (SL, SE - FWD/AWD)
• 2004 Nissan Murano 3.5L V6 (SL, SE - FWD/AWD)
• 2005 Nissan Murano 3.5L V6 (S, SL, SE - FWD/AWD)
• 2006 Nissan Murano 3.5L V6 (S, SL, SE - FWD/AWD)
• 2007 Nissan Murano 3.5L V6 (S, SL, SE - FWD/AWD)

The Nissan VQ Platform Standard

Maintains precise exhaust gas scavenging and engine management calibration across the VQ35DE rev range, eliminating catalyst-related check engine lights while restoring original throttle response.