SKU: 59651642501

Pacemaker King Brown | 2.5" Exhaust, Headers & Cat | Nissan Patrol GQ Wagon 4.2L EFI | KB9505-HCMX

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Description

Pacemaker King Brown | 2.5" Exhaust, Headers & Cat | Nissan Patrol GQ Wagon 4.2L EFI | KB9505-HCMXPacemaker King Brown Single 2. 5" Exhaust with Headers & Catalytic Converter Nissan Patrol GQ Wagon 4. 2L EFI (1987 1997) KB9505 HCMX Completely transform the performance and sound of your classic Nissan Patrol GQ with this ultimate Engine Back King Brown Exhaust System. specifically engineered for the GQ Long Wheel Base (LWB) Wagon fitted with the reliable 4. 2L Fuel Injected Petrol (TB42E) engine, manufactured between 1987 and 1997. This

Pacemaker King Brown Single 2.5" Exhaust with Headers & Catalytic Converter - Nissan Patrol GQ Wagon 4.2L EFI (1987-1997) - KB9505-HCMX

Completely transform the performance and sound of your classic Nissan Patrol GQ with this ultimate Engine-Back King Brown Exhaust System. specifically engineered for the GQ Long Wheel Base (LWB) Wagon fitted with the reliable 4.2L Fuel Injected Petrol (TB42E) engine, manufactured between 1987 and 1997. This comprehensive Single 2 1/2" (2.5 inch) kit is a true end-to-end performance solution, including high-flowing performance headers (extractors) and a high-flow catalytic converter. By scavenging exhaust gases directly from the cylinder head and routing them through an unrestrictive 2.5-inch mandrel-bent system, you will unlock significant gains in horsepower, improved low-end torque for off-roading, and a crisp, deep petrol 6-cylinder exhaust note. Constructed entirely from heavy-duty 409-grade stainless steel, this exhaust system offers extreme durability and immense resistance to rust—perfect for touring and harsh Australian conditions. Proudly Australian Made. Note: Please confirm your vehicle is an EFI equipped 4.2L Petrol GQ Wagon before ordering, as this will not fit Carbureted or Diesel variants.

Features:

A full engine-back replacement engineered for maximum unrestrictive flow, complete compliance, and a commanding exhaust note.

  • System Configuration: Complete Single 2 1/2" (2.5 inch) engine-back exhaust system.
  • Included Components: Comes complete with tuned-length performance headers (extractors) and a high-flow stainless steel catalytic converter.
  • Material: Tough 409 grade stainless steel construction for excellent corrosion resistance and formidable longevity in extreme outback environments.
  • Manufacturing: 100% Australian Made for harsh, demanding Australian off-road conditions.
  • Performance: Mandrel-bent 2.5-inch piping and high-flow extractors allow the TB42E engine to breathe freely, yielding distinctly improved throttle response, greater low-end pulling power, and enhanced fuel efficiency.
  • Sound: Delivers a deep, pronounced petrol 6-cylinder exhaust note without excessive cabin drone.
  • Fitment: Designed to utilize existing factory mounting points where possible for a straightforward fitment.
Product Specifications for KB9505-HCMX
Feature Value Feature Value
Brand Pacemaker King Brown Part # / SKU KB9505-HCMX
Product Type Exhaust Kit with Headers & Cat System Configuration Single 2.5"
Material 409 Grade Stainless Steel Pipe Size 2.5 Inch (2.5")
Fitment Type Direct Replacement Vehicle Connection Engine Back (Bolts to Engine Block)
Fabrication Required No Includes Headers/Extractors Yes
Includes Catalytic Converters Yes (High Flow) Includes Muffler/Resonator Yes
Engine Compatibility 4.2L EFI Petrol (TB42E) Application Off-Road, Touring, 4x4
Body Fitment Long Wheel Base (LWB) Wagon Series GQ Series
Country of Manufacture Australia Recommended Installation Professional Installation Recommended

Important Notes:

  • Suits Nissan Patrol GQ Long Wheel Base (LWB) Wagon models manufactured from 1987 to 1997.
  • CRITICAL FITMENT: Engineered strictly for the Factory 4.2L EFI (Fuel Injected) Petrol engine (TB42E).
  • Will NOT fit models equipped with the Carbureted Petrol engine (TB42S) or Diesel engines.
  • Will NOT fit Short Wheel Base (SWB) or Ute models due to chassis, exhaust routing, and fuel tank differences.
  • This is a complete engine-back kit including performance headers / extractors and a catalytic converter.

Important Information

  • The image shown may not reflect the actual product
  • Shipping times may vary depending on destination and stock availability

Vehicle Applications:

Vehicle Applications for KB9505-HCMX
Make Model From To Body Series Engine Variant Drivetrain
NISSAN
Nissan Patrol 1987 1997 Wagon (LWB) GQ Series (Y60) 4.2L EFI Petrol (TB42E) Standard 4WD
Warranty Information
Product Warranty Period
Pacemaker Headers Two (2) years.
Pacemaker King Brown 4x4 Exhaust systems Five (5) years.
Pacemaker Sports exhaust systems Five (5) years.
Fabrication products and accessories One (1) year.

Payment & Security:
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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 59651642501

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4.1 ★★★★★
Based on 24 reviews
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Product Reviews
H
Verified Purchase
Hannah N. Ford
Omaha, US
★★★★★ 5
Cooling and holds shape.
Color: Blue-ice Plus, Size: Queen(Pack of 2), Color: Blue-ice Plus, Size: Queen(Pack of 2)
Very nice pillow for the price is also holding up well and holding shape very cool and comfortable to the touch. Best pillow I found in a long time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
S
Verified Purchase
smmt
Lexington, US
★★★★★ 5
Best Pillow Ever
Color: Blue-ice Plus, Size: Queen(Pack of 2)
Best pillow ever. Although it still gets "hot", it does take longer to get "hot". I love this pillow. I was buying a new pillow almost every 3 months. Other pillows would either remain rock hard or go flat. I was concerned at first when reading the description as I though the memory foam would be big pieces. They are soft fluffy pieces. I had to remove almost half of the foam to get the pillow to what works for me. I have not had to put any filler back in. Maybe in a couple of more months I may have to put a bit more in, but it is holding it's shape and not going flat. I do fluff it every night. This helps. I am a stomach sleeper. I have bought the expensive purple pillow and hated it so much I gave it to my daughter. This QUTOOL Pillow is the best! I bought a 2 pack. Have not used the other pillow yet, but I feel I may actually go years for once without having to buy a pillow as I have the 2nd one set aside if the first one gets to a point in need replacement. I have bought Dollar Store pillows. I have bought $300 pillows. None of them even come close to this pillow and the way you can adjust this pillow for you. The pillows came in a white mesh like bag. I keep all the unused "stuffing" in this bag. I have it hanging in my closet and I just fluff the bag once a month to keep the filling fresh so it is ready if and when I need it. Coming from someone who has trouble staying asleep, neck issues, a stomach sleeper who hate those flat pillows manufacturers think stomach sleepers like but actually hate, buy this pillow. Just buy it. Best Pillow for a picky person like me. Buy 2 or more so if you have to stay at a hotel, you can take your own pillow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 15, 2025
J
Verified Purchase
Jedata
Lexington, US
★★★★★ 4
Slippery Pillow
Color: Blue-ice Plus, Size: Queen(Pack of 2)
Nice and cooling but it’s so slick my pillow sheet doesn’t want to stay on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
J
Verified Purchase
Jute
Bozeman, US
★★★★★ 5
Foam Mattress NEEDs Foam Pillows
Color: Blue-ice Plus, Size: King(Pack of 2), Color: Blue-ice Plus, Size: King(Pack of 2)
10 stars!! Quality foam, structure & price. Best bang for my buck.    HRV, readiness & total sleep score metrics increased drastically this week.  See screenshot :) Support: Molds and cushions every crevice under my neck and above shoulders. So comfy  Size: Adjustable loft but king length is perfect to hug and rest your head.  Love love love. The 1st 2 nights were uncomfortable with pillow as is, first night I was up at 3am half asleep pulling foam out but wasn't enough. The second night at 2am I pulled out more stuffing. I was getting frustrated..  my Oura ring showed both nights I was awake every hour.  Not good.  Before the 3rd night I pulled enough to fill the bag the 2 pillows arrived in. Boom -8hrs sleep and for the first time ii years I achieved 17% Deep sleep.  Huge. Weight: Perfect weight with adjustment. Squishy and molds to b the contour of my neck and shoulders Softness: Like the baby bear.. just right.   Comfort: Very comfortable after removing 30% foam in both pillows. I actually now have enough to make a 3rd pillow, replace old foam, or adjust OGs, Still to early to measure.  If you have a foam mattress that contours your body but not your head you'll end up with neck and/or back pain from head being elevated- not sinking/molding the body into a foam mattress. 
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 1, 2025
C
Verified Purchase
c.laff
Port Orchard, US
★★★★★ 3
These are not sized correctly - beware
Color: Blue-ice Plus, Size: King(Pack of 2), Color: Blue-ice Plus, Size: King(Pack of 2)
Edit: I was going to return these pillows but the seller contacted me and offered a full refund due to the size issue without having to send the pillows back. I am happy with this and happy to keep them on a spare queen size bed as they really are nice pillows. Just the wrong size. pros: they are a nice pillow and the cooling feature is really great, and you can adjust to your liking cons: absolutely wrong size. Ordered King, tag says king, all measurements on listing and tag say 20x36, in reality they are more like 20x30. Definitely Queen pillows being sold as King. I did not see any reviews at first about size issues but after I got these and did a search it does look like others have had the same problem. A shame, would have given them a great review if they were the correct size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026

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