Cheap Nissan 370Z Catalytic Converter

Yes, every Nissan 370Z sold in the UK was fitted with catalytic converters as standard — the 3.7-litre V6 VQ37VHR petrol engine runs twin cats as part of its exhaust system. There is no diesel or hybrid variant of the 370Z, so there is no DPF to consider, but the catalytic converters are genuine and emissions-critical components. Replacing a faulty cat with a used unit is a common repair, but you must ensure the replacement meets the emissions standard your car was registered under or it may fail an MOT.

The 370Z ran throughout its UK life on the same VQ37VHR engine, but the emissions certification of the catalytic converter matters for MOT compliance — earlier Euro 4 or Euro 5 cars and later Euro 6 cars may have subtle differences in catalyst specification. The 370Z received a facelift around 2013, though the fundamental engine and exhaust architecture remained closely related across the range. Whether a cat from either side of that boundary will interchange correctly and satisfy your car's emissions standard is strong confirm-with-the-breaker territory — give them your registration so they can check.

Trim level does not affect catalytic converter fitment on the 370Z — the GT Edition, Black Edition, and other UK trim variants all shared the same VQ37VHR engine and the same basic exhaust configuration. You may find minor cosmetic differences in exhaust tips or heat shielding between cars, but the cat itself is engine- and emissions-era-driven, not trim-driven. Focus on matching the engine code and the registration year's emissions standard rather than the trim name when sourcing a used unit.

No — the 350Z used the earlier VQ35DE or VQ35HR engine, whereas the 370Z uses the VQ37VHR, and the exhaust systems including the catalytic converters are not the same. The two cars are related but the larger displacement engine and revised exhaust routing mean the parts are not a straightforward swap. Always confirm against your specific registration with the breaker rather than assuming cross-model compatibility.

A remap does not change the physical fitment of the catalytic converter, but it is worth being aware that some aggressive tunes can run the cats harder and cause premature failure. For sourcing purposes, the key factors remain your car's engine code (VQ37VHR) and the emissions standard it was registered under. Confirm the spec of any used unit with the breaker against your registration number, particularly if your car has had any exhaust modifications alongside the remap.

The 370Z's VQ37VHR V6 engine is a twin-exhaust setup, meaning it has two catalytic converters — one per bank. You can replace just one if only one has failed, and breakers will often sell them individually. That said, if one cat has failed and the car has high mileage, it is worth having both checked, as the remaining one may be close to the end of its life too — confirm with the breaker whether they have a matching pair available from the same donor vehicle if you want to replace both.