Pacemaker CAT9580-100L and CAT9580-100R high-flow catalytic converter assemblies are designed for the Nissan Patrol Y62 5.6L V8 when fitting Pacemaker PH9580 headers.
Supplied as dedicated left- and right-hand catalytic converter assemblies, these Pacemaker high-flow cats form part of the complete PH9580 performance exhaust package and are designed to reduce exhaust restriction while retaining catalytic converters in the system.
IMPORTANT – Series 1-3 and Series 4-5 use different sensor wiring extensions. Check your Y62 series before ordering.
Please check availability and current lead time before ordering.
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Pacemaker CAT9580-100L and CAT9580-100R high-flow catalytic converter assemblies are designed for the Nissan Patrol Y62 5.6L V8 when installing Pacemaker PH9580 Tri-Y headers.
The CAT9580-100 assemblies are used in Pacemaker's complete Y62 performance exhaust packages and provide the dedicated left- and right-hand catalytic converter connections between the PH9580 headers and the downstream performance exhaust system.
Pacemaker describes these as high-flow catalytic converters developed to reduce exhaust restriction, allowing the PH9580 header and performance exhaust package to operate efficiently while retaining catalytic converters.
IMPORTANT – Series 1-3 and Series 4-5 use different sensor wiring extensions. Confirm your Y62 series before ordering.
Please check availability and current lead time before ordering.
For Y62 Series 1, 2 and 3, Pacemaker's complete header and catalytic converter package specifies:
For Y62 Series 4 and 5, Pacemaker's current complete package specifies:
PH9580 Headers: CAT9580-100L/R are the catalytic converter assemblies specified by Pacemaker for its PH9580 Y62 header packages.
Series Identification: Confirm whether the vehicle is Series 1-3 or Series 4-5 before ordering the associated wiring extensions. The required extensions differ between the two applications.
Series 4-5: Pacemaker's current complete package includes both PEX9581 O2 sensor extensions and PEXHS9580 heat sensor extensions.
Pacemaker describes its complete Y62 header/catalytic-converter/exhaust packages as bolt-up systems requiring no fabrication when all matching components are used.
PH9580 headers, sensor wiring extensions, heat sensor extensions and downstream exhaust components are sold separately unless specifically included in the package being purchased.
At 4,000 rpm, the 5.6L V8 theoretically draws approximately 11,200 litres of intake air per minute at 100% volumetric efficiency and expels around 33,600 litres of hot exhaust gas per minute at approximately 600°C.
Actual airflow varies with RPM, engine load, volumetric efficiency, induction system, camshaft timing and engine tune. These figures are theoretical values intended to illustrate the substantial volume of gas that must pass through the exhaust system.
A restrictive catalytic converter can become a significant restriction in a high-flow exhaust system. Pacemaker's high-flow catalytic converters are designed to reduce restriction while retaining catalytic converters as part of the PH9580 performance exhaust package.
Ensure the engine is operating correctly before installing replacement catalytic converters. Engine misfire, excessive fuel delivery, oil consumption or other engine-management faults can cause excessive converter temperatures and premature catalytic converter failure.
Confirm the correct sensor extension components for the vehicle series before installation and ensure all oxygen and heat sensors are correctly connected and positioned.
Professional installation is recommended, particularly when fitting the converters together with PH9580 headers.
Pacemaker catalytic converters are covered against manufacturing defects subject to Pacemaker's current warranty terms and conditions.
Catalytic converters and associated oxygen sensors form part of the vehicle's emissions-control system. Installation must comply with applicable state or territory emissions, roadworthiness and vehicle modification requirements.
What vehicle do CAT9580-100L/R catalytic converters suit?
They are designed for the Nissan Patrol Y62 5.6L V8 when used with Pacemaker PH9580 headers.
Are CAT9580-100L and CAT9580-100R different?
Yes. Pacemaker specifies separate left-hand and right-hand catalytic converter assemblies.
Do they suit PH9580 headers?
Yes. CAT9580-100L/R are the catalytic converter assemblies Pacemaker uses in its complete PH9580 Y62 header packages.
What O2 sensor extensions do Series 1-3 use?
PEX9580 – 1 pair.
What sensor extensions do Series 4-5 use?
Pacemaker's current complete package specifies PEX9581 O2 sensor extensions – 1 pair plus PEXHS9580 heat sensor extensions – 1 pair.
Are PH9580 headers included?
No. PH9580 headers are sold separately unless you are purchasing a complete Pacemaker header, catalytic converter and exhaust package.
Can I pick up from the store?
Yes. Pick up is available but must be pre-arranged before collection.
How much is freight?
Freight varies depending on your delivery location and where stock is available. Please contact us for freight charges before ordering. Where possible, we can arrange dispatch from the nearest available product location to help reduce freight costs and delivery times.
Do you ship to the USA?
Yes. Best Mufflers regularly ships exhaust systems and exhaust parts to customers throughout the United States.
Please note that import duties, tariffs, taxes, and customs clearance fees are not included in the product or shipping price. Once your order is processed and the applicable charges are calculated, we will send you a secure payment link to finalise the import duties and tariff charges before dispatch.
For phone orders, advice, or part enquiries – contact us:
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🇦🇺 Best Mufflers
87A Planthurst Road, Carlton NSW 2218, Australia
Exhaust Systems Since 1983
Workshop hours: Mon–Fri 8:00am–5:00pm (By Appointment Only) | Phone and email enquiries welcome 24 hours
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