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Toyota FJ Cruiser 4.0L 1GR-FE V6 2011-2016 Pacemaker Headers PH12675
$762.75
Tax included
Pacemaker Headers PH12675 – Toyota FJ Cruiser GSJ15R 4.0L V6 1GR-FE 03/2011–12/2016
Pacemaker PH12675 headers (extractors) are shorty tuned-length performance headers designed for Australian Toyota FJ Cruiser GSJ15R models fitted with the 4.0L V6 1GR-FE DOHC Dual VVT-i petrol engine from 03/2011 to 12/2016. Featuring mandrel-bent 42mm primary pipes and 63mm outlets, these headers are designed to improve exhaust flow, scavenging, torque and throttle response while retaining the factory catalytic converter position.
Important: Installation requires the headers to be connected to the original factory pre-catalytic converters. Cutting, welding and exhaust fabrication are required.
Best Mufflers provides expert advice and fast shipping Australia-wide.
Click the image for larger views and more photos.
Pacemaker Headers PH12675 – Toyota FJ Cruiser GSJ15R 4.0L V6 1GR-FE 03/2011–12/2016
Pacemaker PH12675 headers (extractors) are shorty tuned-length performance headers designed for Australian Toyota FJ Cruiser GSJ15R models fitted with the 4.0L V6 1GR-FE DOHC Dual VVT-i petrol engine from 03/2011 to 12/2016.
The shorty tuned-length design uses mandrel-bent 42mm primary pipes with 63mm outlets and is designed to improve exhaust gas flow and cylinder scavenging compared with the restrictive factory exhaust manifolds. Improved exhaust flow can contribute to stronger usable torque, sharper throttle response and improved overall engine performance.
PH12675 is designed to retain the factory catalytic converter position; however, installation requires cutting, welding and exhaust fabrication to connect the headers to the original factory pre-catalytic converters. Professional installation by an experienced exhaust workshop is strongly recommended.
Key Features
- Australian made Pacemaker performance headers
- Shorty tuned-length design
- Designed for the 4.0L V6 1GR-FE DOHC 24-valve Dual VVT-i petrol engine
- Mandrel-bent 42mm primary pipes
- Large 63mm outlets
- Designed to retain the factory catalytic converter position
- Suitable for the factory 5-speed automatic transmission
- Designed for Australian-delivered 4WD FJ Cruiser GSJ15R applications
- Mandrel-bent steel construction for consistent exhaust gas flow
- Thick machined flanges for strength, durability and reliable sealing
- Designed to improve exhaust flow, scavenging, torque and throttle response
Vehicle Fitment
- Make: Toyota
- Model: FJ Cruiser
- Series: GSJ15R
- Date Range: 03/2011–12/2016
- Engine: 1GR-FE
- Capacity: 4.0L / 3956cc
- Configuration: V6 DOHC 24-Valve Dual VVT-i Petrol
- Transmission: 5-Speed Automatic
- Drivetrain: 4WD
Header Specifications
- Part Number: PH12675
- Design: Shorty tuned-length
- Primary Pipe Size: 42mm
- Outlet Size: 63mm
- Construction: Mandrel-bent steel tubing
- Standard Finish: Pacemaker Blue
- Coating Temperature Rating: Approximately 800°C
- Application: Street / touring / 4WD performance
Construction
- High-quality steel tubing for strength and long service life
- Mandrel-bent pipework maintains consistent internal diameter through bends
- Precision welded construction for strength and accurate fitment
- Pacemaker Blue heat-resistant finish rated to approximately 800°C
- Australian manufactured for proven quality and durability
Additional Options
- Ceramic Coating: See product code "PHC80" for improved heat management, appearance and corrosion resistance
- Replacement Gaskets: Available separately if required
Important Installation Information
PH12675 headers are not a simple bolt-on installation.
- The headers are designed to connect to the original factory pre-catalytic converters.
- Cutting, welding and exhaust fabrication are required during installation.
- The factory catalytic converter position is retained.
- Original factory exhaust manifold gaskets can be reused where they remain serviceable.
- Inspect all original gaskets before installation and replace any damaged or deteriorated components.
- Check oxygen sensor positioning and wiring during installation.
- Modifications involving catalytic converters or oxygen sensor positioning can potentially cause a check-engine light if exhaust or sensor operation is altered.
- Professional installation by an experienced exhaust workshop is strongly recommended.
- Lubricate exhaust studs, nuts and threaded fittings with penetrating lubricant before removal.
Fitment Notes
Please confirm your vehicle is an Australian-delivered Toyota FJ Cruiser GSJ15R fitted with the 4.0L V6 1GR-FE Dual VVT-i petrol engine before ordering.
This listing applies to the Australian FJ Cruiser GSJ15R from 03/2011–12/2016. Specifications of overseas-market FJ Cruiser models may differ, including transmission, emissions equipment and exhaust configuration. Please contact us before ordering for a vehicle originally sold outside Australia.
Protect painted surfaces and wrap the headers during trial fitting to prevent damage to the coating.
Check steering, engine mounts, oxygen sensor wiring and surrounding components for adequate clearance during installation. Clearance may vary where aftermarket exhaust systems or other vehicle modifications have been fitted.
Check availability before ordering.
For vehicles manufactured from 1986 onwards, modifications involving catalytic converters or other emissions-control equipment may be subject to emissions and registration regulations. Verify compliance requirements applicable in your state or territory before installation.
What’s Included
- 1 x Pacemaker PH12675L left-hand header assembly
- 1 x Pacemaker PH12675R right-hand header assembly
- Installation hardware and outlet components as supplied by Pacemaker
Note: Exhaust manifold/header gaskets are not included unless specifically selected or stated at the time of purchase. Original factory gaskets may be reused where serviceable.
Recommended With
- Replacement exhaust manifold gaskets where the original gaskets are not suitable for reuse
- Matching performance exhaust system or intermediate pipes
- PHC80 ceramic coating upgrade
- Flexible exhaust joiners and mounting components where required during fabrication
Why Good Headers & Exhaust Systems Matter
At 4,000 rpm, the 4.0L 1GR-FE V6 draws in approximately 8,000 litres of intake air per minute and expels around 24,000 litres of exhaust gas per minute at approximately 600°C.
Warranty & Compliance
Pacemaker headers are backed by Pacemaker's 2-year manufacturer warranty, subject to the manufacturer's applicable warranty terms and conditions.
Installation involving catalytic converters, oxygen sensors or other emissions-control components must comply with applicable vehicle emissions and registration regulations. It is the vehicle owner's responsibility to ensure the completed installation complies with requirements applicable in their state or territory.
Frequently Asked Questions
Will PH12675 fit Australian Toyota FJ Cruiser models?
PH12675 is designed for applicable Australian Toyota FJ Cruiser GSJ15R models fitted with the 4.0L V6 1GR-FE Dual VVT-i petrol engine from 03/2011 to 12/2016.
Will PH12675 fit an overseas-market FJ Cruiser?
Specifications of overseas-market FJ Cruisers may differ from Australian-delivered GSJ15R models. If your FJ Cruiser was originally sold outside Australia, please contact us with your vehicle details before ordering.
Will PH12675 fit a manual FJ Cruiser?
Australian-delivered FJ Cruiser GSJ15R models were fitted with a 5-speed automatic transmission. If you have an overseas-market manual FJ Cruiser, please contact us before ordering to confirm compatibility.
Do PH12675 headers retain the factory catalytic converters?
Yes. PH12675 is designed to connect to the original factory pre-catalytic converters and retain the factory catalytic converter position.
Are PH12675 headers a direct bolt-on installation?
No. Cutting, welding and exhaust fabrication are required to connect the headers to the original factory pre-catalytic converters. Professional installation by an experienced exhaust workshop is recommended.
Could installation cause a check-engine light?
Changes affecting catalytic converter or oxygen sensor operation can potentially trigger a check-engine light. Correct sensor positioning, exhaust sealing and professional installation are important when completing the conversion.
What size are the PH12675 header pipes?
PH12675 headers use 42mm mandrel-bent primary pipes with 63mm outlets.
Are exhaust manifold gaskets included?
Header/manifold gaskets are not included unless specifically stated or selected separately. Original factory gaskets can be reused where they remain in good serviceable condition.
Can these headers be ceramic coated?
Yes. Ceramic coating is available separately under product code PHC80 for improved heat management, appearance and corrosion resistance.
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.
Customer Support
For phone orders, advice, or part enquiries – contact us:
📞 Call Now: +61 2 9547 3511 ✉️ Email Us
🇦🇺 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
Pacemaker-Headers-PH12675
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Pacemaker Headers PH12675 – Toyota FJ Cruiser GSJ15R 4.0L V6 1GR-FE 03/2011–12/2016
Pacemaker PH12675 headers (extractors) are shorty tuned-length performance headers designed for Australian Toyota FJ Cruiser GSJ15R models fitted with the 4.0L V6 1GR-FE DOHC Dual VVT-i petrol engine from 03/2011 to 12/2016. Featuring mandrel-bent 42mm primary pipes and 63mm outlets, these headers are designed to improve exhaust flow, scavenging, torque and throttle response while retaining the factory catalytic converter position.
Important: Installation requires the headers to be connected to the original factory pre-catalytic converters. Cutting, welding and exhaust fabrication are required.
Best Mufflers provides expert advice and fast shipping Australia-wide.
Click the image for larger views and more photos.